How to improve computing power in local search
Publish: 2021-05-21 01:50:56
1. In mathematics teaching, the accuracy of students' calculation has always been the main problem affecting students' performance. Many students always think that calculation problems are much easier than analytical application problems, and they have a solid knowledge of some rules and laws, so calculation is easy. Therefore, they are overconfident or unable to concentrate in calculation, and the results are full of mistakes, I pay special attention to the calculation practice. Strengthen the calculation practice, improve the calculation ability, so as to improve the performance of 20% of the students. In junior high school mathematics teaching, the topics related to the calculation content account for more than 55% of a test paper, Effectively improving the accuracy of calculation is a very important aspect of junior high school mathematics teaching.
the significance and importance of calculation.
1. Calculation is the cornerstone of learning mathematics. Mastering calculation opens the door to the kingdom of mathematics. In teaching practice, there is such a phenomenon: although many students master the calculation method, they often make mistakes in calculation, The accuracy rate of calculation is very low. It not only directly affects the learning effect of word problems and application problems, but also seriously hinders the improvement of students' mathematics performance. Therefore, we must improve the accuracy rate of students' calculation. 2. Number and calculation will accompany one's whole life. A person needs to learn all the mathematics knowledge when he is an alt in middle school, Second, the reasons for the low accuracy rate of calculation.
1. When students analyze the causes of wrong questions, they often make mistakes, such as "reading wrong questions and ing wrong ones", "writing scribbled and ambiguous", "not making draft when calculating, adding or subtracting one digit leads to wrong whole questions", It seems that most of the reasons are as follows: & quot; Carelessness & quot; What is the cause of "carelessness"? There are only two aspects: one is that students' psychological quality is not mature enough, the other is that they have not formed good study habits. Therefore, cultivating students' good study habits is not only the requirement of quality ecation, but also the premise of improving the calculation accuracy.
2. At the same time, some students' calculation accuracy is not very high, It also reflects that the computing ability of these students needs to be improved (for example, they are not familiar with multiplication formula, carry addition and so on); It may lack a good habit of calculation, such as the habit of checking calculation. Many students ignore the role of "estimation" in calculation. This may have something to do with our usual teaching practice.
Third, measures to improve the accuracy of calculation, It is very necessary to correct the calculation errors and improve the accuracy of calculation to cultivate students' good learning attitude and calculation habits, and then improve the quality of teaching.
2. Do a good job of demonstration and teaching by words and deeds. The teacher is the example of students. In class, the board performance is in line with the norms, so as to achieve both oral and personal teaching, Teachers who require students to do it must do it first.
3. Encourage and persevere constantly. It takes a long time to form a good habit of calculation. To make the strict requirements persist, students must be encouraged to recognize the strict requirements of teachers and keep a lasting interest in implementing the calculation specifications, Students: 1, in accordance with the general order of calculation. Make clear the meaning of the problem, observe the characteristics of the problem, determine the order of calculation. 2, to develop a good habit of serious calculation. Clear data, draft in accordance with a certain order. 3, can not blindly pursue high speed. Rather slow than wrong, rather less than excessive.
4, specific methods:
1, strict calculation process, Standardizing the calculation of draft is the guarantee to improve the accuracy of calculation. Students are required to have standard calculation format, neat and correct writing, and neat homework and test papers. Draft is a necessary means for correct mathematical calculation, and many calculation errors are caused by Scribble and disorder of draft. In teaching, draft also requires students to write neatly and orderly, and try to do oral calculation as much as possible, Students are required to make a draft according to their usual requirements. The paper can be folded in half, and the draft should correspond to the questions. This is concive to students' self review in an orderly way, and there is no need to spend more time rewriting the draft. It saves time and effort to check directly. It is concive to cultivating students' rigorous, meticulous, honest and serious homework habits, overcoming the bad habit of scribbling and littering drafts, and helping teachers find and analyze the causes of errors, To help students to correct and control the future teaching.
2. To make students form a good habit of calculation, we must be strict, careful and persistent; If there are nonstandard calculation errors in the test, we should give detailed comments and teach methods in class; Students with repeated errors should be given a "small stove". Self check and mutual check should be carried out on the implementation of calculation specifications, so as to cultivate students' rigorous style of study from time to time and everywhere. At the beginning, students should correct drafts in detail as they do homework, and students should correct mistakes in drafts seriously. When students graally develop the habit, they should change detailed ones into simple ones, and simple ones into random ones, To sum up, the formation of good calculation habits of students, first, strict requirements, strict training. Second, to teach students some methods to make calculation correct and effective. Third, to actively ecate and encourage students to establish the confidence that they will be able to calculate correctly in psychology, and strive to calculate correctly in behavior, Will be able to promote students to improve the accuracy of calculation
the significance and importance of calculation.
1. Calculation is the cornerstone of learning mathematics. Mastering calculation opens the door to the kingdom of mathematics. In teaching practice, there is such a phenomenon: although many students master the calculation method, they often make mistakes in calculation, The accuracy rate of calculation is very low. It not only directly affects the learning effect of word problems and application problems, but also seriously hinders the improvement of students' mathematics performance. Therefore, we must improve the accuracy rate of students' calculation. 2. Number and calculation will accompany one's whole life. A person needs to learn all the mathematics knowledge when he is an alt in middle school, Second, the reasons for the low accuracy rate of calculation.
1. When students analyze the causes of wrong questions, they often make mistakes, such as "reading wrong questions and ing wrong ones", "writing scribbled and ambiguous", "not making draft when calculating, adding or subtracting one digit leads to wrong whole questions", It seems that most of the reasons are as follows: & quot; Carelessness & quot; What is the cause of "carelessness"? There are only two aspects: one is that students' psychological quality is not mature enough, the other is that they have not formed good study habits. Therefore, cultivating students' good study habits is not only the requirement of quality ecation, but also the premise of improving the calculation accuracy.
2. At the same time, some students' calculation accuracy is not very high, It also reflects that the computing ability of these students needs to be improved (for example, they are not familiar with multiplication formula, carry addition and so on); It may lack a good habit of calculation, such as the habit of checking calculation. Many students ignore the role of "estimation" in calculation. This may have something to do with our usual teaching practice.
Third, measures to improve the accuracy of calculation, It is very necessary to correct the calculation errors and improve the accuracy of calculation to cultivate students' good learning attitude and calculation habits, and then improve the quality of teaching.
2. Do a good job of demonstration and teaching by words and deeds. The teacher is the example of students. In class, the board performance is in line with the norms, so as to achieve both oral and personal teaching, Teachers who require students to do it must do it first.
3. Encourage and persevere constantly. It takes a long time to form a good habit of calculation. To make the strict requirements persist, students must be encouraged to recognize the strict requirements of teachers and keep a lasting interest in implementing the calculation specifications, Students: 1, in accordance with the general order of calculation. Make clear the meaning of the problem, observe the characteristics of the problem, determine the order of calculation. 2, to develop a good habit of serious calculation. Clear data, draft in accordance with a certain order. 3, can not blindly pursue high speed. Rather slow than wrong, rather less than excessive.
4, specific methods:
1, strict calculation process, Standardizing the calculation of draft is the guarantee to improve the accuracy of calculation. Students are required to have standard calculation format, neat and correct writing, and neat homework and test papers. Draft is a necessary means for correct mathematical calculation, and many calculation errors are caused by Scribble and disorder of draft. In teaching, draft also requires students to write neatly and orderly, and try to do oral calculation as much as possible, Students are required to make a draft according to their usual requirements. The paper can be folded in half, and the draft should correspond to the questions. This is concive to students' self review in an orderly way, and there is no need to spend more time rewriting the draft. It saves time and effort to check directly. It is concive to cultivating students' rigorous, meticulous, honest and serious homework habits, overcoming the bad habit of scribbling and littering drafts, and helping teachers find and analyze the causes of errors, To help students to correct and control the future teaching.
2. To make students form a good habit of calculation, we must be strict, careful and persistent; If there are nonstandard calculation errors in the test, we should give detailed comments and teach methods in class; Students with repeated errors should be given a "small stove". Self check and mutual check should be carried out on the implementation of calculation specifications, so as to cultivate students' rigorous style of study from time to time and everywhere. At the beginning, students should correct drafts in detail as they do homework, and students should correct mistakes in drafts seriously. When students graally develop the habit, they should change detailed ones into simple ones, and simple ones into random ones, To sum up, the formation of good calculation habits of students, first, strict requirements, strict training. Second, to teach students some methods to make calculation correct and effective. Third, to actively ecate and encourage students to establish the confidence that they will be able to calculate correctly in psychology, and strive to calculate correctly in behavior, Will be able to promote students to improve the accuracy of calculation
2. First of all, understand and firmly grasp the basic knowledge. That is, the basic knowledge related to computing power, mainly refers to mathematical concepts, operation laws, operation properties, operation rules and calculation formulas. It is difficult for students to understand some calculation rules. In teaching, teachers should not be in a hurry for success, but should help students to master basic knowledge as a breakthrough, disperse and break through difficulties. For example, when teaching the addition and subtraction method of different denominator fractions, first of all, let students understand that the denominator is different, that is, the units of fractions are different. If the units of fractions are different, they can't add and subtract directly. When they understand this truth, they can guide students to use the knowledge of general score to change the different denominator fractions into the same denominator fractions, so the problem turns into the addition and subtraction of the same denominator fractions that they have learned
Second, strengthen the practice and basic skills training. In the calculation practice, strengthening the basic skills training is an important step to improve the calculation ability. In addition, in the calculation practice, we should help students summarize some regular things, so that they can skillfully use the basic knowledge to calculate, and constantly improve their calculation ability. In addition, the forms of calculation exercises should be diversified, and the forms should serve the content. However, we should pay attention to the quantity of exercises. We can't do the opposite as long as we don't pay attention to the quantity and quality. Some students lack the spirit of diligent learning, and the calculation itself is boring and lack of plot. When students encounter a large number of questions, they are easy to resist and unwilling to calculate, which can seriously affect students' interest in learning mathematics. In teaching, as teachers, we should simplify the topic selection, Try to find some simple calculation problems to guide students to do abstruse calculation problems
thirdly, cultivate students' good study habits. Good learning habits are the guarantee to improve the accuracy of calculation. First of all, students are required to carefully review the calculation, and do not blindly simplify the calculation without reviewing the operation order, such as 15 + 5 × 5), the students mistakenly calculated it as 20 × Secondly, the calculation process should be strictly standardized. When solving problems, students are required to have standard calculation format, neat writing, clean homework and paper surface. Even the draft should be written neatly and clearly. When students make mistakes in calculation, students should not only check the calculation process, but also find out whether there are errors in the draft. For example; The alignment of digits, whether the carry is added or not. Let the students form the habit of self checking in calculation< Fourth, strengthen the cultivation of the ability of oral calculation.
calculation is the basis of estimation and written calculation. Any four item mixed calculation problem is synthesized by the oral calculation problem of the main road. The correctness and rapidity of oral calculation directly affect the improvement of the calculation ability. When designing oral calculation exercises, we should be targeted, from easy to difficult, and graally improve them, including some simple calculation problems, It is helpful to train students' thinking flexibility to do oral arithmetic exercises frequently.
Second, strengthen the practice and basic skills training. In the calculation practice, strengthening the basic skills training is an important step to improve the calculation ability. In addition, in the calculation practice, we should help students summarize some regular things, so that they can skillfully use the basic knowledge to calculate, and constantly improve their calculation ability. In addition, the forms of calculation exercises should be diversified, and the forms should serve the content. However, we should pay attention to the quantity of exercises. We can't do the opposite as long as we don't pay attention to the quantity and quality. Some students lack the spirit of diligent learning, and the calculation itself is boring and lack of plot. When students encounter a large number of questions, they are easy to resist and unwilling to calculate, which can seriously affect students' interest in learning mathematics. In teaching, as teachers, we should simplify the topic selection, Try to find some simple calculation problems to guide students to do abstruse calculation problems
thirdly, cultivate students' good study habits. Good learning habits are the guarantee to improve the accuracy of calculation. First of all, students are required to carefully review the calculation, and do not blindly simplify the calculation without reviewing the operation order, such as 15 + 5 × 5), the students mistakenly calculated it as 20 × Secondly, the calculation process should be strictly standardized. When solving problems, students are required to have standard calculation format, neat writing, clean homework and paper surface. Even the draft should be written neatly and clearly. When students make mistakes in calculation, students should not only check the calculation process, but also find out whether there are errors in the draft. For example; The alignment of digits, whether the carry is added or not. Let the students form the habit of self checking in calculation< Fourth, strengthen the cultivation of the ability of oral calculation.
calculation is the basis of estimation and written calculation. Any four item mixed calculation problem is synthesized by the oral calculation problem of the main road. The correctness and rapidity of oral calculation directly affect the improvement of the calculation ability. When designing oral calculation exercises, we should be targeted, from easy to difficult, and graally improve them, including some simple calculation problems, It is helpful to train students' thinking flexibility to do oral arithmetic exercises frequently.
3. Anshun's 2011 "ten livelihood projects" have been released recently. The projects involve ten categories, including environmental improvement, employment promotion, poverty alleviation, ecation, social security, health care, people's livelihood, infrastructure, culture and sports, and social management. In 2011, Anshun will establish and improve the relevant security system, promote the implementation of the "livelihood project" with high standards, high quality and high efficiency, and strive to become a model "project" in the whole province<
● poverty alleviation
helping 36000 people out of poverty
recing 36000 people in the whole year. The annual per capita net income of farmers in four key poverty alleviation and development counties increased by more than 10%. The poverty alleviation project of mountain agriculture was carried out in depth, and the pilot project of "one instry oriented, multi proct symbiosis, short-term cultivation and long-term cultivation combined" was carried out in four key poverty alleviation counties. We will implement the "three one poverty alleviation cell project" with the main content of "one poor farmer transfers one person, one mu of economic forest (Garden) per capita, and one family grasps one way to increase the income of secondary and tertiary instries and become rich". We will expand employment channels for the masses in poverty alleviation areas, train and transfer 800 people, and transfer 10000 people to other instries. Actively develop rural tourism, and carry out rural tourism pilot in four poor villages. We will continue to do a good job in the poverty alleviation work of Party building in the four key counties, do a good job in the activity of "pairing ten thousand branches and helping ten thousand party members", and complete the rotation training task of Party organization secretaries in 400 first-class poor villages<
● employment promotion
15000 new jobs were created
more than 15900 new jobs were created in cities and towns, 4700 unemployed people with certificates were re employed, 2300 people with employment difficulties were re employed, and the registered unemployment rate was controlled within 4.5%. 180-200 college graates were recruited to work in the village, and no less than 50 college graates were recruited to work in supporting medicine, agriculture, ecation and poverty alleviation. About 150 college graates were recruited to participate in the employment internship; No less than 20% of college graates who have registered for unemployment are employed; By using "Saturday" job fairs, special job fairs, public welfare job fairs, etc., all enterprises in the city are organized to actively provide jobs, strive to achieve 1500 jobs, and recommend college graates to achieve 8000 employment. More than one employment and internship base will be established, and 40000 rural labor will be transferred for employment. Organize "SIYB" entrepreneurship training for no less than 5 periods, and train 300 small bosses; 160 small business owners will be added in the city, 2000 new jobs will be created, and the policy system to create a provincial entrepreneurial city will be launched; We should actively create provincial demonstration counties for rural labor transfer and employment; The coverage rate of human resources and social security platform construction in the streets and towns of the city has reached more than 85%, and more than two fully employed communities have been created< In 2011, Anshun City will further carry out etiquette learning activities for millions of citizens. More than 11000 secondary vocational school students have been recruited, 5000 skilled talents have been trained for the society, and more than 15000 labor force have been trained; Alt higher ecation has enrolled more than 2300 students; The gross enrollment rate of senior high school ecation is 46%, and that of higher ecation is 17%. In order to improve the quality of science and technology, vocational skills and business ability as the core, large-scale rural practical technology training. We will promote the construction of provincial key demonstration secondary vocational schools in Anshun vocational secondary schools<
● social security
realize the full coverage of urban and rural social assistance system
the number of basic endowment insurance participants has reached 125152, basically solving the problems left over by the history of pension security for uninsured family members and temporary workers. The number of urban basic medical insurance participants reached 376419. We will improve the minimum living security system for urban and rural residents and achieve full coverage of the urban and rural social assistance system. Urban and rural minimum living security should be guaranteed as much as possible and guaranteed according to the standard under dynamic management. We should improve the social security system for land expropriated farmers and realize the connection with the new rural endowment insurance pilot and the basic endowment insurance system for urban workers as soon as possible. The measures for the qualification of urban low-income families were issued, the temporary relief system and urban and rural medical relief system were standardized and improved, and the temporary relief funds, rural five guarantees funds and rural five guarantees construction funds were included in the local financial budgets at all levels, which were increased year on year. The number of unemployment, work-related injury and maternity insurance insured reached 68305, 82841 and 101475 respectively
the municipal funeral service center was built and put into use, and the crematorium and cemetery projects were started. The construction of Anshun urban public transport hub terminal was started<
● people live in peace
realize the dream of low-income families' "Snail House"
9803 sets of low rent housing, 1309 sets of affordable housing, 380 sets of public rental housing, 40 sets of price limited commercial housing, 300 sets of urban shantytowns, 400 sets of state-owned instrial and mining shantytowns and 327 sets of forest shantytowns are newly constructed. Basically solve the housing problem of urban low-income families whose per capita housing construction area is less than 15 square meters in Anshun. All construction contents of the "6.28" post disaster reconstruction, relocation and resettlement project in Gangwu Town, Guanling Autonomous County were completed, and 655 people from 149 households were resettled to ensure the smooth resettlement of the victims. Do a good job in the relocation of rural houses and schools threatened by geological disasters
start the construction of Wudang road and Beishan Road, start the construction of two pedestrian overpasses in the central urban area, complete the "white to black" road project in the main street of Xixiu District, and do a good job in the construction of sewage collection pipe network project and domestic waste collection and transportation system project in the central urban area. The first phase construction of the new campus of Anshun No.2 Middle School was completed. We should do a good job in the reconstruction of the streets and alleys in the central urban area<
● infrastructure
solve the problem of safe drinking water for 150000 people
invest 250 million yuan to complete 65.5 kilometers of national and provincial trunk lines. The implementation of township (town) smooth engineering and other rural highway construction projects. To solve the problem of safe drinking water for 150000 people, we have completed 27 dangerous reservoirs, 100 square kilometers of soil erosion control area, 34000 mu of "water and tobacco supporting" project construction task, implemented two small and medium-sized river control projects, and ensured the completion of two "Ziqian" projects of rape River Reservoir and Ziyun Luga reservoir in Xixiu District. The construction of rural power grid was improved, and 186.86 million yuan was invested in the construction and transformation of rural power grid. The complete transformation rate of administrative village power grid was 100%, the power supply reliability rate of rural power grid was 98.6%, and the comprehensive line loss rate of rural power grid was reced to 12%. More than 167.98 million yuan has been invested in upgrading the urban power grid, 30 new township (town) radio and television service stations have been built, the cable television network of 40 towns has been transformed and digitized as a whole, 651km optical communication cables have been built in rural areas, 480 mobile communication base stations have been built, 80 administrative villages have been added to realize optical fiber access, and 30 natural villages have been added to connect telephone<
● environmental improvement
landscape renovation along Shanghai Kunming highway was completed
focusing on expressways, high-speed railways, main trunk roads, scenic spots, instrial parks, main reservoir areas and historical and cultural towns, rural living environment improvement projects were carried out in a series. In the first half of 2011, we completed the preparation, evaluation and approval of all pilot village construction (renovation) plans, and achieved initial results this year. By the end of October 2011, the renovation of architectural landscape along Anshun of Shanghai Kunming expressway will be completed. We should do a good job in the implementation plan and project planning of the pilot project of "one case, one discussion" financial awards and subsidies for village level public welfare undertakings in 2011, actively apply to the province, and strive for Guanling Autonomous County (including Baishui town) and Ziyun Autonomous County to enter the pilot scope of the whole province
● culture and sports
build a number of public welfare cultural and sports venues
build 50 farmers' cultural homes and 508 farmers' Book houses. Complete the maintenance and construction of two County Libraries (cultural centers); Complete the equipment configuration of 20 Township comprehensive cultural stations, and equip 2 community cultural centers and 2 community cultural activity rooms; Complete 20 cultural information resource sharing projects of township (town), community primary service point equipment. Ten village level farmers' sports fitness projects, two township level farmers' sports fitness projects, 12 community fitness path projects, one county-level Stadium "snow charcoal project" have been built, and the construction of municipal National Fitness Center (athletes' apartment) and Municipal Cultural Center (power plant workers' Club) have been started. 22044 rural public welfare films were screened. More than 60 performances of "three cultural trips to the countryside" were organized<
● medical and health
the relocation project of Anshun people's hospital was started
the per capita basic public health service fund reached 20 yuan. Consolidate and improve the new rural cooperative medical system, implement the government subsidy standard of 120 yuan per person per year, and the participation rate is stable at more than 95%. Five Township family planning service stations were newly built or expanded, and 80 village family planning service rooms were newly built or expanded. We should do a good job in the prevention and control of infectious diseases and maternal and child health care, control the outbreak of infectious diseases, and rece maternal and infant mortality. One tertiary hospital in our city and two tertiary hospitals in Zhejiang Province were organized to support five county-level hospitals in our city. We should implement the national essential drug system in primary medical and health institutions run by the government, equip and use essential drugs, and implement zero margin sales. We started the relocation project of the Municipal People's Hospital, started the standardization construction project of Xixiu District and Pingba County hospitals, and completed the standardization construction project of Puding and Ziyun county hospitals<
● social management
ten thousand monitoring points monitor the urban area
basically complete the construction of the city's urban alarm and monitoring system ("Skynet project"), and speed up the construction of the second phase of the urban alarm and monitoring system, with 10000 front-end monitoring points, 1000 alarm points, and the city's central area, main roads, key and critical parts of the case The main entrances and exits of the campus and key areas are all equipped with video monitoring probes, and the monitoring and alarm network sharing with provincial, municipal and county public security organs should be realized. Schools at all levels and of all types shall be equipped with full-time security personnel according to the proportion of 2 to 3 students below 500, 3 to 5 students between 500 and 1000, and no less than 3 ‰ of the total number of students above 1000
complete the construction of rescue and Protection Center for street children and children's welfare home. We should strengthen the management of the floating population, establish a comprehensive information system for the service and management of the floating population, and graally promote the "one card" management methods such as residence permit and social security card.
● poverty alleviation
helping 36000 people out of poverty
recing 36000 people in the whole year. The annual per capita net income of farmers in four key poverty alleviation and development counties increased by more than 10%. The poverty alleviation project of mountain agriculture was carried out in depth, and the pilot project of "one instry oriented, multi proct symbiosis, short-term cultivation and long-term cultivation combined" was carried out in four key poverty alleviation counties. We will implement the "three one poverty alleviation cell project" with the main content of "one poor farmer transfers one person, one mu of economic forest (Garden) per capita, and one family grasps one way to increase the income of secondary and tertiary instries and become rich". We will expand employment channels for the masses in poverty alleviation areas, train and transfer 800 people, and transfer 10000 people to other instries. Actively develop rural tourism, and carry out rural tourism pilot in four poor villages. We will continue to do a good job in the poverty alleviation work of Party building in the four key counties, do a good job in the activity of "pairing ten thousand branches and helping ten thousand party members", and complete the rotation training task of Party organization secretaries in 400 first-class poor villages<
● employment promotion
15000 new jobs were created
more than 15900 new jobs were created in cities and towns, 4700 unemployed people with certificates were re employed, 2300 people with employment difficulties were re employed, and the registered unemployment rate was controlled within 4.5%. 180-200 college graates were recruited to work in the village, and no less than 50 college graates were recruited to work in supporting medicine, agriculture, ecation and poverty alleviation. About 150 college graates were recruited to participate in the employment internship; No less than 20% of college graates who have registered for unemployment are employed; By using "Saturday" job fairs, special job fairs, public welfare job fairs, etc., all enterprises in the city are organized to actively provide jobs, strive to achieve 1500 jobs, and recommend college graates to achieve 8000 employment. More than one employment and internship base will be established, and 40000 rural labor will be transferred for employment. Organize "SIYB" entrepreneurship training for no less than 5 periods, and train 300 small bosses; 160 small business owners will be added in the city, 2000 new jobs will be created, and the policy system to create a provincial entrepreneurial city will be launched; We should actively create provincial demonstration counties for rural labor transfer and employment; The coverage rate of human resources and social security platform construction in the streets and towns of the city has reached more than 85%, and more than two fully employed communities have been created< In 2011, Anshun City will further carry out etiquette learning activities for millions of citizens. More than 11000 secondary vocational school students have been recruited, 5000 skilled talents have been trained for the society, and more than 15000 labor force have been trained; Alt higher ecation has enrolled more than 2300 students; The gross enrollment rate of senior high school ecation is 46%, and that of higher ecation is 17%. In order to improve the quality of science and technology, vocational skills and business ability as the core, large-scale rural practical technology training. We will promote the construction of provincial key demonstration secondary vocational schools in Anshun vocational secondary schools<
● social security
realize the full coverage of urban and rural social assistance system
the number of basic endowment insurance participants has reached 125152, basically solving the problems left over by the history of pension security for uninsured family members and temporary workers. The number of urban basic medical insurance participants reached 376419. We will improve the minimum living security system for urban and rural residents and achieve full coverage of the urban and rural social assistance system. Urban and rural minimum living security should be guaranteed as much as possible and guaranteed according to the standard under dynamic management. We should improve the social security system for land expropriated farmers and realize the connection with the new rural endowment insurance pilot and the basic endowment insurance system for urban workers as soon as possible. The measures for the qualification of urban low-income families were issued, the temporary relief system and urban and rural medical relief system were standardized and improved, and the temporary relief funds, rural five guarantees funds and rural five guarantees construction funds were included in the local financial budgets at all levels, which were increased year on year. The number of unemployment, work-related injury and maternity insurance insured reached 68305, 82841 and 101475 respectively
the municipal funeral service center was built and put into use, and the crematorium and cemetery projects were started. The construction of Anshun urban public transport hub terminal was started<
● people live in peace
realize the dream of low-income families' "Snail House"
9803 sets of low rent housing, 1309 sets of affordable housing, 380 sets of public rental housing, 40 sets of price limited commercial housing, 300 sets of urban shantytowns, 400 sets of state-owned instrial and mining shantytowns and 327 sets of forest shantytowns are newly constructed. Basically solve the housing problem of urban low-income families whose per capita housing construction area is less than 15 square meters in Anshun. All construction contents of the "6.28" post disaster reconstruction, relocation and resettlement project in Gangwu Town, Guanling Autonomous County were completed, and 655 people from 149 households were resettled to ensure the smooth resettlement of the victims. Do a good job in the relocation of rural houses and schools threatened by geological disasters
start the construction of Wudang road and Beishan Road, start the construction of two pedestrian overpasses in the central urban area, complete the "white to black" road project in the main street of Xixiu District, and do a good job in the construction of sewage collection pipe network project and domestic waste collection and transportation system project in the central urban area. The first phase construction of the new campus of Anshun No.2 Middle School was completed. We should do a good job in the reconstruction of the streets and alleys in the central urban area<
● infrastructure
solve the problem of safe drinking water for 150000 people
invest 250 million yuan to complete 65.5 kilometers of national and provincial trunk lines. The implementation of township (town) smooth engineering and other rural highway construction projects. To solve the problem of safe drinking water for 150000 people, we have completed 27 dangerous reservoirs, 100 square kilometers of soil erosion control area, 34000 mu of "water and tobacco supporting" project construction task, implemented two small and medium-sized river control projects, and ensured the completion of two "Ziqian" projects of rape River Reservoir and Ziyun Luga reservoir in Xixiu District. The construction of rural power grid was improved, and 186.86 million yuan was invested in the construction and transformation of rural power grid. The complete transformation rate of administrative village power grid was 100%, the power supply reliability rate of rural power grid was 98.6%, and the comprehensive line loss rate of rural power grid was reced to 12%. More than 167.98 million yuan has been invested in upgrading the urban power grid, 30 new township (town) radio and television service stations have been built, the cable television network of 40 towns has been transformed and digitized as a whole, 651km optical communication cables have been built in rural areas, 480 mobile communication base stations have been built, 80 administrative villages have been added to realize optical fiber access, and 30 natural villages have been added to connect telephone<
● environmental improvement
landscape renovation along Shanghai Kunming highway was completed
focusing on expressways, high-speed railways, main trunk roads, scenic spots, instrial parks, main reservoir areas and historical and cultural towns, rural living environment improvement projects were carried out in a series. In the first half of 2011, we completed the preparation, evaluation and approval of all pilot village construction (renovation) plans, and achieved initial results this year. By the end of October 2011, the renovation of architectural landscape along Anshun of Shanghai Kunming expressway will be completed. We should do a good job in the implementation plan and project planning of the pilot project of "one case, one discussion" financial awards and subsidies for village level public welfare undertakings in 2011, actively apply to the province, and strive for Guanling Autonomous County (including Baishui town) and Ziyun Autonomous County to enter the pilot scope of the whole province
● culture and sports
build a number of public welfare cultural and sports venues
build 50 farmers' cultural homes and 508 farmers' Book houses. Complete the maintenance and construction of two County Libraries (cultural centers); Complete the equipment configuration of 20 Township comprehensive cultural stations, and equip 2 community cultural centers and 2 community cultural activity rooms; Complete 20 cultural information resource sharing projects of township (town), community primary service point equipment. Ten village level farmers' sports fitness projects, two township level farmers' sports fitness projects, 12 community fitness path projects, one county-level Stadium "snow charcoal project" have been built, and the construction of municipal National Fitness Center (athletes' apartment) and Municipal Cultural Center (power plant workers' Club) have been started. 22044 rural public welfare films were screened. More than 60 performances of "three cultural trips to the countryside" were organized<
● medical and health
the relocation project of Anshun people's hospital was started
the per capita basic public health service fund reached 20 yuan. Consolidate and improve the new rural cooperative medical system, implement the government subsidy standard of 120 yuan per person per year, and the participation rate is stable at more than 95%. Five Township family planning service stations were newly built or expanded, and 80 village family planning service rooms were newly built or expanded. We should do a good job in the prevention and control of infectious diseases and maternal and child health care, control the outbreak of infectious diseases, and rece maternal and infant mortality. One tertiary hospital in our city and two tertiary hospitals in Zhejiang Province were organized to support five county-level hospitals in our city. We should implement the national essential drug system in primary medical and health institutions run by the government, equip and use essential drugs, and implement zero margin sales. We started the relocation project of the Municipal People's Hospital, started the standardization construction project of Xixiu District and Pingba County hospitals, and completed the standardization construction project of Puding and Ziyun county hospitals<
● social management
ten thousand monitoring points monitor the urban area
basically complete the construction of the city's urban alarm and monitoring system ("Skynet project"), and speed up the construction of the second phase of the urban alarm and monitoring system, with 10000 front-end monitoring points, 1000 alarm points, and the city's central area, main roads, key and critical parts of the case The main entrances and exits of the campus and key areas are all equipped with video monitoring probes, and the monitoring and alarm network sharing with provincial, municipal and county public security organs should be realized. Schools at all levels and of all types shall be equipped with full-time security personnel according to the proportion of 2 to 3 students below 500, 3 to 5 students between 500 and 1000, and no less than 3 ‰ of the total number of students above 1000
complete the construction of rescue and Protection Center for street children and children's welfare home. We should strengthen the management of the floating population, establish a comprehensive information system for the service and management of the floating population, and graally promote the "one card" management methods such as residence permit and social security card.
4.
We live in the era of data. All data services can't do without the support of computing power. The application fields of computing power platform are very wide. I'll send you two pictures to see< br />
5. Based on the decentralized characteristics of blockchain technology, the application of blockchain technology can be said to be more, but at present, the substantive application is still less, mainly applied in the fields of finance, medical treatment, authentication, smart contract, sharing economy, digital assets and so on. For example, Yingtang Zhongchuang's blockchain solution is mainly in the development of data encryption, transaction protection and data security transaction system, while other enterprises are more focused on internal needs.
6. Brief introction: Qingzhou Jinzun Mining Machinery Co., Ltd., established in 2015, is located in the government office of Mihe Town, the famous flower capital in northern China. It is a company developing new manufacturing machinery. Over the years, it has been adhering to the corporate culture of "innovation, profession and integrity". Through continuous innovation, its proct specifications are becoming more and more diversified, And since the company entered the instry, in the continuous digestion and absorption of advanced technology of imported procts, but also in the proction process innovation. The company has workshop and processing equipment, according to the design requirements for fixed length proction, not limited by fixed folding machine and other equipment specifications. Qingzhou Jinzun Mining Machinery Co., Ltd. is a domestic enterprise specializing in the proction of gold panning equipment, gold panning boat, dredger, mining equipment and gold separation equipment. It is an enterprise integrating scientific research and development, beneficiation process design, proction and installation, and after-sales service. Based on scientific innovation and gravity separation technology as the core, the company established the gold gravity separation technology research institute, carried out extensive exchanges and cooperation with Shandong Gold Research Institute and Changchun Gold Research Institute, and was recommended as the preferred brand of placer gold extraction machinery by Shandong Gold Research Institute. The company always pursues the enterprise spirit of "innovation, professionalism and integrity", and strictly controls the whole process of proct proction, testing, sales and service. Qingzhou Jinzun Mining Machinery Co., Ltd. has won six national invention patents and passed ISO9001 quality system certification. Now it has been sold all over the world, and has been exported to more than 60 countries, including Russia, Laos, Vietnam, Kazakhstan, Tajikistan, North Korea, Philippines, Mongolia, Myanmar, Papua New Guinea, Indonesia, Fiji, South Africa, Ghana, Benin, Nigeria, Colombia, Mozambique, Sierra Leone, Cameroon, Brazil, Guyana, Honras, etc
legal representative: Cao Jingang
time of establishment: March 6, 2015
registered capital: RMB 2 million
Instrial and commercial registration number: 370781200050594
enterprise type: limited liability company (sole proprietorship of natural person)
address: Yangjia village, Mihe Town, Qingzhou City (east of the original refueling station)
legal representative: Cao Jingang
time of establishment: March 6, 2015
registered capital: RMB 2 million
Instrial and commercial registration number: 370781200050594
enterprise type: limited liability company (sole proprietorship of natural person)
address: Yangjia village, Mihe Town, Qingzhou City (east of the original refueling station)
7. 1、 In teaching, to enable students to understand and master the basic knowledge of computing, which is the premise of improving students' computing ability
primary school students often make mistakes in the process of computing e to various reasons, many parents and even teachers are completely attributed to their children's carelessness. In fact, this is only one of the reasons. To a large extent, it is the lack of comprehensive ability of children in calculation. For example, the basic knowledge such as operation law, operation property, operation law and calculation formula is not mastered or cannot be used reasonably and flexibly. Even though the child is very careful and serious in the calculation, he makes seemingly simple mistakes e to the lack of basic knowledge. In teaching, we can't be in a hurry for success. We need to help students find out the reasons (such as incomprehensible calculation theory, incomprehensible laws, unclear nature, unfamiliar laws, not mastering formulas, etc.), find out the omissions and fill the gaps, clear up the obstacles, and do a good job in basic work for further learning calculation
Second, in teaching, it is necessary to cultivate students' interest in computing, which is the key to improve students' computing ability
Einstein once said, "interest is the best teacher.". Confucius also said: "those who know are not as good as those who know well, and those who know well are not as good as those who are happy.". They all talked about the importance of interest. In the teaching of computing, we should stimulate students' interest in computing, let them fall in love with computing and be willing to do it. Only in this way can our teaching of computation be successful. Therefore, we should combine the content of teaching, pay attention to the diversification of training forms, teach in fun, so that the boring teaching of computing is full of vitality. For example, we can use multimedia, cards and other available learning aids and teaching aids to train students in such ways as visual calculation, listening calculation, snatching calculation, in-game calculation, calculation competition and self-made calculation, so as to fully mobilize students' enthusiasm, change students' passivity into initiative, and graally form a lasting interest in calculation
thirdly, in teaching, we should cultivate students' good computing habits, which is the guarantee of improving their computing ability
good computing habits directly affect the formation and improvement of students' computing ability. When doing the calculation problems, some students often have the attitude of contempt. Some calculation problems are not unable to do, but e to the bad habits of insufficient concentration, ing wrong problems, careless calculation, not checking calculation, etc. Therefore, in the teaching of calculation, it is also very important to pay attention to the cultivation of students' good calculation habits. In teaching, we should try our best to make the students form the habit of concentration, careful calculation, careful ing, conscious inspection, conscious estimation and checking. In addition, teachers should strengthen the guidance of writing format. The standard writing format can help students to prevent wrong writing, missing writing numbers and operation symbols, rece the chance of error, and improve the accuracy of calculation
Fourth, in teaching, we should strengthen practice, which is the magic weapon to improve our computing ability
Confucius said, "learn while you learn", "review the old and learn the new", which shows the necessity of practice. Only on the basis of mastering the calculation method, strengthen the practice, can we improve the speed and accuracy of calculation. Only in this way can we realize the knack of calculation and improve the ability of calculation in an all-round way. Of course, we should pay attention to the diversity of training strategies and methods, so as not to cause students' boring mood. For example, the training content should have levels: basic training (the purpose is to master the rules, operation laws, operation properties, calculation formulas, etc.); Targeted training (the purpose is to correct where students are most likely to make mistakes); The purpose of special training is to improve the speed and accuracy of calculation by strengthening memory and remembering commonly used calculation values. For example: the proct of the approximate value of PI 3.14 and one digit, the simplest fraction with denominator of 2, 4, 5, 8, 10 and the interaction of decimals, etc.) Training methods should be diverse, such as: competition, can improve speed; Game style, can improve interest and so on. There are many ways of training, such as: using multimedia; Use simple teaching aids and learning aids (self-made calculation cards, counters, playing cards, etc.)< In teaching, we should strengthen the training of oral arithmetic, which is a shortcut to improve the ability of calculation
oral calculation is the basis of calculation. The strength of oral calculation ability directly affects the speed and accuracy of students' calculation, so we should pay attention to the cultivation of oral calculation ability. First of all, classroom teaching should avoid rigid and single. It can be used in various forms. For example: the form of game can be used in the junior grade: such as "driving a train", "looking for friends", "looking for house number", "sending a letter", "right password", "winning the red flag", "breaking the barrier", etc; The middle grade can use the mental arithmetic board, the mental arithmetic table, the card, the slide or the game to carry on the training; Senior training methods can be named answer, rush answer, all answer, listen to count, count, etc; If we use the above different forms of training methods, if possible, adhere to the appropriate oral arithmetic training before each class, I believe it will be able to quickly improve students' computing ability< Sixth, encourage students to use oral arithmetic in life, which is an essential way to improve students' oral arithmetic ability
we should encourage students to use computing knowledge in our life, so as to make students have a sense of achievement and obtain pleasure. In this way, students will pay more attention to computing and mathematics, so as to improve their interest in learning mathematics. We know: computing is the most widely used in our life. Teachers can get the cooperation of parents, and often let students consciously participate in the calculation of shopping, car ride, travel and other expenses. This can not only improve students' awareness of the application of oral arithmetic, but also improve students' computing ability. It's really a double win with one stone
in short, computing teaching is a long-term and complex teaching process, and it is not a matter of one day to improve students' computing ability. It needs the joint efforts of teachers, parents and children to achieve good results. I hope that teachers, in the future in the teaching of computing bear fruitful results.
primary school students often make mistakes in the process of computing e to various reasons, many parents and even teachers are completely attributed to their children's carelessness. In fact, this is only one of the reasons. To a large extent, it is the lack of comprehensive ability of children in calculation. For example, the basic knowledge such as operation law, operation property, operation law and calculation formula is not mastered or cannot be used reasonably and flexibly. Even though the child is very careful and serious in the calculation, he makes seemingly simple mistakes e to the lack of basic knowledge. In teaching, we can't be in a hurry for success. We need to help students find out the reasons (such as incomprehensible calculation theory, incomprehensible laws, unclear nature, unfamiliar laws, not mastering formulas, etc.), find out the omissions and fill the gaps, clear up the obstacles, and do a good job in basic work for further learning calculation
Second, in teaching, it is necessary to cultivate students' interest in computing, which is the key to improve students' computing ability
Einstein once said, "interest is the best teacher.". Confucius also said: "those who know are not as good as those who know well, and those who know well are not as good as those who are happy.". They all talked about the importance of interest. In the teaching of computing, we should stimulate students' interest in computing, let them fall in love with computing and be willing to do it. Only in this way can our teaching of computation be successful. Therefore, we should combine the content of teaching, pay attention to the diversification of training forms, teach in fun, so that the boring teaching of computing is full of vitality. For example, we can use multimedia, cards and other available learning aids and teaching aids to train students in such ways as visual calculation, listening calculation, snatching calculation, in-game calculation, calculation competition and self-made calculation, so as to fully mobilize students' enthusiasm, change students' passivity into initiative, and graally form a lasting interest in calculation
thirdly, in teaching, we should cultivate students' good computing habits, which is the guarantee of improving their computing ability
good computing habits directly affect the formation and improvement of students' computing ability. When doing the calculation problems, some students often have the attitude of contempt. Some calculation problems are not unable to do, but e to the bad habits of insufficient concentration, ing wrong problems, careless calculation, not checking calculation, etc. Therefore, in the teaching of calculation, it is also very important to pay attention to the cultivation of students' good calculation habits. In teaching, we should try our best to make the students form the habit of concentration, careful calculation, careful ing, conscious inspection, conscious estimation and checking. In addition, teachers should strengthen the guidance of writing format. The standard writing format can help students to prevent wrong writing, missing writing numbers and operation symbols, rece the chance of error, and improve the accuracy of calculation
Fourth, in teaching, we should strengthen practice, which is the magic weapon to improve our computing ability
Confucius said, "learn while you learn", "review the old and learn the new", which shows the necessity of practice. Only on the basis of mastering the calculation method, strengthen the practice, can we improve the speed and accuracy of calculation. Only in this way can we realize the knack of calculation and improve the ability of calculation in an all-round way. Of course, we should pay attention to the diversity of training strategies and methods, so as not to cause students' boring mood. For example, the training content should have levels: basic training (the purpose is to master the rules, operation laws, operation properties, calculation formulas, etc.); Targeted training (the purpose is to correct where students are most likely to make mistakes); The purpose of special training is to improve the speed and accuracy of calculation by strengthening memory and remembering commonly used calculation values. For example: the proct of the approximate value of PI 3.14 and one digit, the simplest fraction with denominator of 2, 4, 5, 8, 10 and the interaction of decimals, etc.) Training methods should be diverse, such as: competition, can improve speed; Game style, can improve interest and so on. There are many ways of training, such as: using multimedia; Use simple teaching aids and learning aids (self-made calculation cards, counters, playing cards, etc.)< In teaching, we should strengthen the training of oral arithmetic, which is a shortcut to improve the ability of calculation
oral calculation is the basis of calculation. The strength of oral calculation ability directly affects the speed and accuracy of students' calculation, so we should pay attention to the cultivation of oral calculation ability. First of all, classroom teaching should avoid rigid and single. It can be used in various forms. For example: the form of game can be used in the junior grade: such as "driving a train", "looking for friends", "looking for house number", "sending a letter", "right password", "winning the red flag", "breaking the barrier", etc; The middle grade can use the mental arithmetic board, the mental arithmetic table, the card, the slide or the game to carry on the training; Senior training methods can be named answer, rush answer, all answer, listen to count, count, etc; If we use the above different forms of training methods, if possible, adhere to the appropriate oral arithmetic training before each class, I believe it will be able to quickly improve students' computing ability< Sixth, encourage students to use oral arithmetic in life, which is an essential way to improve students' oral arithmetic ability
we should encourage students to use computing knowledge in our life, so as to make students have a sense of achievement and obtain pleasure. In this way, students will pay more attention to computing and mathematics, so as to improve their interest in learning mathematics. We know: computing is the most widely used in our life. Teachers can get the cooperation of parents, and often let students consciously participate in the calculation of shopping, car ride, travel and other expenses. This can not only improve students' awareness of the application of oral arithmetic, but also improve students' computing ability. It's really a double win with one stone
in short, computing teaching is a long-term and complex teaching process, and it is not a matter of one day to improve students' computing ability. It needs the joint efforts of teachers, parents and children to achieve good results. I hope that teachers, in the future in the teaching of computing bear fruitful results.
8. Computational ability is the basic ability and foundation for students to learn mathematics. It is one of the main tasks of primary school mathematics to cultivate and improve students' computational ability. How to improve students' computational ability and let students calculate correctly, quickly, flexibly and reasonably? In the teaching work, I have done some discussion and research, and achieved some good results. I summarize the following points:
first, find problems and change students' understanding
in order to make students realize the importance of calculation, I first carried out an activity among students: let students collect the mistakes they often make in calculation, which can be carried out by each student within two weeks, The students' enthusiasm is aroused, and the problem is shaken out:
(1) the title is read wrong, copied wrong, and scribbled
(2) when the column is vertical, the digits are not aligned
(3) do not draft when calculating
(4) one digit addition and subtraction calculation errors lead to errors in the whole question< There are two reasons for carelessness: one is that children's physical and psychological development is not mature enough; the other is that they have not formed good learning habits. The first is a natural growth process; the second is that corresponding methods can be adopted for training, Therefore, while guiding students to analyze the reasons, it is necessary to highlight the cultivation of students' good learning habits, which is the key to improve their computing ability and the basic requirement of quality ecation.
Second, cultivate students' good computing habits. Most of the errors in calculation are caused by careless, careless, scribbled and other bad habits, Good calculation habit is the guarantee to improve the calculation ability. In the calculation training, students are required to do one look, two think, three calculate and four check.
1. Look: they are serious about logarithm. If all the questions are copied wrong, how can the results be correct? Therefore, students are required to check with the original question or the previous formula in time when ing questions and calculating each step, so as not to wrong numbers or operation symbols; ② Check the numbers on the vertical type with those on the horizontal type; ③ In addition, the calculation must be accurate first, and then fast.
3. Calculation: writing, calculation, homework, homework, homework, etc The writing of exercises should be neat, not scribbled, and the format must be standardized. The writing of numbers, decimal points, and operation symbols in the title should be in line with the standard, with appropriate intervals between the numbers, and the vertical type on the draft should be aligned and organized clearly, so that the calculation can be focused and not rushed.
4; Secondly, check whether the numbers and symbols are copied wrong, and whether the decimal point is written wrongly or omitted; Thirdly, we should check and calculate every number and final result in the middle of calculation. Therefore, cultivating good study habits is an important way to prevent calculation errors and improve calculation ability.
thirdly, we should cultivate students' oral calculation ability and lay a solid foundation, In order to improve the accuracy and speed of students' oral calculation, I consciously ask students to memorize some special mathematical combinations according to their knowledge structure, such as the sum of the whole ten and the whole hundred (73 and 27, 98 and 2, etc.); 2; The proct is two numbers (25) of the whole ten and the whole hundred × 4,125 × 8, etc.); The memory of these calculation results is not only of great help to improve students' calculation accuracy, but also greatly improve students' calculation speed.
2. Arrange exercises in each class. In each math class, depending on the teaching content and students' actual situation, choose an appropriate time, arrange 3-5 minutes of oral calculation exercises, and each student prepares a Book (practice oral calculation every day), so as to carry on for a long time and persevere, It has achieved good results.
3. Various forms of transformation training, such as visual arithmetic training, listening arithmetic training, oral arithmetic, oral arithmetic games, "confrontation race", "relay race" and so on, can improve students' adaptability.
4. Strengthen the teaching of estimation
estimation can cultivate students' sense of number and guide students to understand "operation" in depth, It can help students check whether the calculation result is correct or not. By using the estimation method, the calculation result can be positioned in advance, and the value range of the calculation result can be determined quickly. Through the estimation before calculation and the check after calculation, the errors caused by carelessness can be avoided. Students can see the last bit of the calculation result. If the bits are 3 and 8, the sum of the bits of the result is definitely 1, Multiplication must be 4, such as 13 × In a word, the cultivation of students' computing ability should be carried out in the whole process of primary school mathematics teaching. We should not only strengthen the training of students' basic skills, but also pay attention to the targeted training of students, Students' computing ability will certainly be improved
first, find problems and change students' understanding
in order to make students realize the importance of calculation, I first carried out an activity among students: let students collect the mistakes they often make in calculation, which can be carried out by each student within two weeks, The students' enthusiasm is aroused, and the problem is shaken out:
(1) the title is read wrong, copied wrong, and scribbled
(2) when the column is vertical, the digits are not aligned
(3) do not draft when calculating
(4) one digit addition and subtraction calculation errors lead to errors in the whole question< There are two reasons for carelessness: one is that children's physical and psychological development is not mature enough; the other is that they have not formed good learning habits. The first is a natural growth process; the second is that corresponding methods can be adopted for training, Therefore, while guiding students to analyze the reasons, it is necessary to highlight the cultivation of students' good learning habits, which is the key to improve their computing ability and the basic requirement of quality ecation.
Second, cultivate students' good computing habits. Most of the errors in calculation are caused by careless, careless, scribbled and other bad habits, Good calculation habit is the guarantee to improve the calculation ability. In the calculation training, students are required to do one look, two think, three calculate and four check.
1. Look: they are serious about logarithm. If all the questions are copied wrong, how can the results be correct? Therefore, students are required to check with the original question or the previous formula in time when ing questions and calculating each step, so as not to wrong numbers or operation symbols; ② Check the numbers on the vertical type with those on the horizontal type; ③ In addition, the calculation must be accurate first, and then fast.
3. Calculation: writing, calculation, homework, homework, homework, etc The writing of exercises should be neat, not scribbled, and the format must be standardized. The writing of numbers, decimal points, and operation symbols in the title should be in line with the standard, with appropriate intervals between the numbers, and the vertical type on the draft should be aligned and organized clearly, so that the calculation can be focused and not rushed.
4; Secondly, check whether the numbers and symbols are copied wrong, and whether the decimal point is written wrongly or omitted; Thirdly, we should check and calculate every number and final result in the middle of calculation. Therefore, cultivating good study habits is an important way to prevent calculation errors and improve calculation ability.
thirdly, we should cultivate students' oral calculation ability and lay a solid foundation, In order to improve the accuracy and speed of students' oral calculation, I consciously ask students to memorize some special mathematical combinations according to their knowledge structure, such as the sum of the whole ten and the whole hundred (73 and 27, 98 and 2, etc.); 2; The proct is two numbers (25) of the whole ten and the whole hundred × 4,125 × 8, etc.); The memory of these calculation results is not only of great help to improve students' calculation accuracy, but also greatly improve students' calculation speed.
2. Arrange exercises in each class. In each math class, depending on the teaching content and students' actual situation, choose an appropriate time, arrange 3-5 minutes of oral calculation exercises, and each student prepares a Book (practice oral calculation every day), so as to carry on for a long time and persevere, It has achieved good results.
3. Various forms of transformation training, such as visual arithmetic training, listening arithmetic training, oral arithmetic, oral arithmetic games, "confrontation race", "relay race" and so on, can improve students' adaptability.
4. Strengthen the teaching of estimation
estimation can cultivate students' sense of number and guide students to understand "operation" in depth, It can help students check whether the calculation result is correct or not. By using the estimation method, the calculation result can be positioned in advance, and the value range of the calculation result can be determined quickly. Through the estimation before calculation and the check after calculation, the errors caused by carelessness can be avoided. Students can see the last bit of the calculation result. If the bits are 3 and 8, the sum of the bits of the result is definitely 1, Multiplication must be 4, such as 13 × In a word, the cultivation of students' computing ability should be carried out in the whole process of primary school mathematics teaching. We should not only strengthen the training of students' basic skills, but also pay attention to the targeted training of students, Students' computing ability will certainly be improved
9. 1、 Stimulate interest in learning computing“ Interest is the best teacher. Interesting computing ability is a basic ability that everyone must have. Cultivating drama and vivid stories will make the relatively simple and boring learning of computing lively and interesting. It will make students interested in learning and get twice the result with half the effort
the game is exciting. For example: the division and combination of teaching numbers can adopt the mathematical game of "clapping hands" and take the division and combination of 10 as an example. The teacher patted his hand and asked: Liao Xiaohe, I ask you, what's my 4 beats? This game can be adjusted according to the change of learning content at any time. According to the students' proficiency, the rhythm can be adjusted at any time; It can change the form at any time, such as collective answer, group answer, indivial student answer, teacher ask student answer, student ask student answer and so on
the story is exciting. To stimulate interest with typical examples of Chinese and foreign mathematicians or short stories related to the classroom content. In teaching, we should timely list the typical examples of Chinese and foreign mathematicians. For example, Chen Jingrun, a famous mathematician in our country, constantly calculates in order to conquer "Goldbach conjecture", and the draft paper calculates in several sacks. Through such vivid and typical examples, we can stimulate students' will and arouse their interest in calculation; Or use the stories that students like to hear and see to activate the classroom atmosphere and attract students' attention. For example, in the two digit plus one digit carry addition, there are some mistakes that often appear when "little careless" is doing the problem. Let the students point out the mistakes first, and then look at the mistakes they have made. It not only arouses students' attention, but also stimulates students' interest in mathematics learning, so that students can concentrate on calculation and improve the learning effect in class
Second, cultivate good computing habits
a good habit of computing is a catalyst for success, which benefits people for life. The advantages and disadvantages of students' computing habits directly affect the formation and improvement of their computing ability. Therefore, in order to improve students' computing ability, we should first cultivate students' good habit of examining questions, writing and checking
the habit of examining questions. A good habit of examining questions is the key factor to improve the calculation ability, and the accuracy of calculation largely depends on the correctness of examining questions. Examination is the key first step in the process of calculation. Examination can overcome the influence of thinking set and eliminate the interference of thinking caused by strong information concentration. For example, when calculating 18-7 + 3, many students calculate 18-7 + 3 = 18 e to the strong information of "rounding". As soon as the students see the topic, they do it. They don't examine the topic carefully, and they don't think about what counts first and then what counts. As a result, such a simple calculation problem is wrong. Therefore, it is urgent to strengthen the cultivation of good examination habits
writing habits. Good writing habits can help students rece unnecessary mistakes. Nonstandard writing is also a common reason for calculation errors. When students are calculating, they sometimes look at it by mistake because of the illegible handwriting, such as 6 and 0, 3 and 8; Some write, write, erase, and blur; Some vertical writing is not standard, the number is not aligned and so on, may cause the calculation error. Therefore, in teaching, it is necessary to require students to write neat, standard format, to urge students to write numbers correctly and clearly
the habit of checking calculation. Checking and checking calculation is not only an effective measure to ensure correct calculation, but also a means to promote students' understanding of calculation process and calculation skills. Students can further understand the inverse operation relationship between addition and subtraction through checking calculation. But because of their weak willpower, primary school students are often unable to consciously check and calculate. Therefore, in the teaching of calculation, we should pay attention to teach students the methods of checking calculation, such as: requiring students to do "four checks": one check whether the number is copied correctly; Second, check whether the symbols are accurate; Third, check whether the operation sequence is correct; 4. Check whether the results are correct and write them down. The cultivation of students' good habits is not a day's work, it needs us to persevere in our efforts. This is a good thing beneficial to students all their lives, and we must do a good job
Third, understand the calculation principle and optimize the algorithm in hands-on operation
calculation is the premise and basis of correct operation. In the students' mind, the examples are clear, and the calculation is orderly. It is a difficult point to explore the arithmetic of carry addition within 20. When learning carry addition within 20, students can put it into practice, experience the process of "making up ten", and understand the method of "making up ten". For example:. At the beginning of class, students list the corresponding formula: 8 + 5 through situations and questions. Some students immediately reported the answer: teacher, 8 + 5 = 13. I said: you are so smart! How many children know the result? If you know, try to verify whether your results are correct; Children who don't know can use learning aids to help us calculate. Under my guidance, students use learning aids to represent 8 and 5 respectively, and operate according to their own different ideas. In the process of operation, students can understand the arithmetic of addition and carry. In the report, I try my best to let the students narrate, supplement, collect all kinds of information, and show a variety of algorithms. On this basis, I guide the students to find that these algorithms are interlinked. They all achieve the purpose of oral calculation by rounding up 10, so that the students can understand this kind of problem. Through the method of "looking at the large number, dividing the decimal, first rounding up 10, then adding a few", they can "optimize" the "diversification" in time, Seek a simple and fast method, so as to improve students' computing ability< Fourth, pay attention to the training of oral arithmetic in the teaching of calculation
in order to make the students have higher computing ability in primary school, we must pay attention to oral arithmetic and strengthen the training of oral arithmetic. Because oral arithmetic is an important part of calculation ability, and it is also the basis of written arithmetic, abacus and estimation. It is widely used in daily life and study. Therefore, in mathematics teaching, I attach great importance to strengthening students' oral arithmetic training. Before each mathematics class, I will use 3 to 5 minutes to carry out various forms of oral arithmetic training for students. For example: (1) oral arithmetic competition, let students write the number directly after the oral arithmetic exercises in the book, and organize proofreading and evaluation after the competition. And let the students who can calculate quickly and correctly talk about their own tricks 2) Read the cards and write the numbers directly. You can write the numbers on the cards. Students can write the numbers one by one. At last, students can show the numbers to organize proofreading and evaluation 3) Look at the problem and answer it by mouth. Let the students do it by themselves and then answer it by name 4) Listen and count, the teacher read the problem, let the students write the problem directly, show the problem after listening and count, organize the students to proofread and evaluate the result 5) Find a friend: let the students take the mental arithmetic card to find the number, etc. This tense and orderly training form can not only pay attention to every student, but also arouse students' great interest, and greatly improve the quality of group students' oral arithmetic practice< 5. Carefully design the calculation exercises
practice is an important way for students to consolidate knowledge and form skills. When designing exercises, we should pay attention to the following points: 1. We can design some exercises that can reflect the basis of calculation theory and the formation of algorithm for students to practice, such as the calculation process of 9 + 5 =. In this way, students not only understand the calculation theory, but also master the calculation method, playing a multiplier effect with half the effort. 2. Practice with easy to confuse contrast. In order to improve the students' identification ability and accuracy of calculation, we put the confusing questions together and let them distinguish and compare. 3. Often make mistakes and practice over and over again. The students use the new algorithm to calculate some of the typical errors on the blackboard, let the students find out the mistakes, correct them, can clear the obstacles for the students algorithm. 4. The practice should be taught according to the person, and the practice goal should be put forward in different levels. For the students with strong computing ability, the requirements can be improved; For students with slow thinking, the requirements are lower; For poor students, let them do the most basic exercises, give help and encouragement in practice, let them overcome inferiority, build up confidence, and really mobilize their learning enthusiasm< Sixth, strengthen the collation and analysis of wrong questions
we should pay attention to the collection and collation of students' mistakes, and analyze the ideological roots of their mistakes. In my usual homework, I prepare a notebook to classify and record the errors in students' calculation, find out the common errors and find out the typical errors, so as to "suit the remedy to the case" in teaching, especially find out the typical errors with unclear calculation and wrong methods, organize students to analyze the root causes, find out the "cause", and then design a certain number of targeted exercises, Purposeful "living therapy". At the same time, each student is required to prepare a wrong problem book, and the students are required to "sort out the wrong problems", record the mistakes in their homework book, exercise book and test paper in the wrong problem book in time, find out the reasons for the mistakes, and correct and classify them in time.
the game is exciting. For example: the division and combination of teaching numbers can adopt the mathematical game of "clapping hands" and take the division and combination of 10 as an example. The teacher patted his hand and asked: Liao Xiaohe, I ask you, what's my 4 beats? This game can be adjusted according to the change of learning content at any time. According to the students' proficiency, the rhythm can be adjusted at any time; It can change the form at any time, such as collective answer, group answer, indivial student answer, teacher ask student answer, student ask student answer and so on
the story is exciting. To stimulate interest with typical examples of Chinese and foreign mathematicians or short stories related to the classroom content. In teaching, we should timely list the typical examples of Chinese and foreign mathematicians. For example, Chen Jingrun, a famous mathematician in our country, constantly calculates in order to conquer "Goldbach conjecture", and the draft paper calculates in several sacks. Through such vivid and typical examples, we can stimulate students' will and arouse their interest in calculation; Or use the stories that students like to hear and see to activate the classroom atmosphere and attract students' attention. For example, in the two digit plus one digit carry addition, there are some mistakes that often appear when "little careless" is doing the problem. Let the students point out the mistakes first, and then look at the mistakes they have made. It not only arouses students' attention, but also stimulates students' interest in mathematics learning, so that students can concentrate on calculation and improve the learning effect in class
Second, cultivate good computing habits
a good habit of computing is a catalyst for success, which benefits people for life. The advantages and disadvantages of students' computing habits directly affect the formation and improvement of their computing ability. Therefore, in order to improve students' computing ability, we should first cultivate students' good habit of examining questions, writing and checking
the habit of examining questions. A good habit of examining questions is the key factor to improve the calculation ability, and the accuracy of calculation largely depends on the correctness of examining questions. Examination is the key first step in the process of calculation. Examination can overcome the influence of thinking set and eliminate the interference of thinking caused by strong information concentration. For example, when calculating 18-7 + 3, many students calculate 18-7 + 3 = 18 e to the strong information of "rounding". As soon as the students see the topic, they do it. They don't examine the topic carefully, and they don't think about what counts first and then what counts. As a result, such a simple calculation problem is wrong. Therefore, it is urgent to strengthen the cultivation of good examination habits
writing habits. Good writing habits can help students rece unnecessary mistakes. Nonstandard writing is also a common reason for calculation errors. When students are calculating, they sometimes look at it by mistake because of the illegible handwriting, such as 6 and 0, 3 and 8; Some write, write, erase, and blur; Some vertical writing is not standard, the number is not aligned and so on, may cause the calculation error. Therefore, in teaching, it is necessary to require students to write neat, standard format, to urge students to write numbers correctly and clearly
the habit of checking calculation. Checking and checking calculation is not only an effective measure to ensure correct calculation, but also a means to promote students' understanding of calculation process and calculation skills. Students can further understand the inverse operation relationship between addition and subtraction through checking calculation. But because of their weak willpower, primary school students are often unable to consciously check and calculate. Therefore, in the teaching of calculation, we should pay attention to teach students the methods of checking calculation, such as: requiring students to do "four checks": one check whether the number is copied correctly; Second, check whether the symbols are accurate; Third, check whether the operation sequence is correct; 4. Check whether the results are correct and write them down. The cultivation of students' good habits is not a day's work, it needs us to persevere in our efforts. This is a good thing beneficial to students all their lives, and we must do a good job
Third, understand the calculation principle and optimize the algorithm in hands-on operation
calculation is the premise and basis of correct operation. In the students' mind, the examples are clear, and the calculation is orderly. It is a difficult point to explore the arithmetic of carry addition within 20. When learning carry addition within 20, students can put it into practice, experience the process of "making up ten", and understand the method of "making up ten". For example:. At the beginning of class, students list the corresponding formula: 8 + 5 through situations and questions. Some students immediately reported the answer: teacher, 8 + 5 = 13. I said: you are so smart! How many children know the result? If you know, try to verify whether your results are correct; Children who don't know can use learning aids to help us calculate. Under my guidance, students use learning aids to represent 8 and 5 respectively, and operate according to their own different ideas. In the process of operation, students can understand the arithmetic of addition and carry. In the report, I try my best to let the students narrate, supplement, collect all kinds of information, and show a variety of algorithms. On this basis, I guide the students to find that these algorithms are interlinked. They all achieve the purpose of oral calculation by rounding up 10, so that the students can understand this kind of problem. Through the method of "looking at the large number, dividing the decimal, first rounding up 10, then adding a few", they can "optimize" the "diversification" in time, Seek a simple and fast method, so as to improve students' computing ability< Fourth, pay attention to the training of oral arithmetic in the teaching of calculation
in order to make the students have higher computing ability in primary school, we must pay attention to oral arithmetic and strengthen the training of oral arithmetic. Because oral arithmetic is an important part of calculation ability, and it is also the basis of written arithmetic, abacus and estimation. It is widely used in daily life and study. Therefore, in mathematics teaching, I attach great importance to strengthening students' oral arithmetic training. Before each mathematics class, I will use 3 to 5 minutes to carry out various forms of oral arithmetic training for students. For example: (1) oral arithmetic competition, let students write the number directly after the oral arithmetic exercises in the book, and organize proofreading and evaluation after the competition. And let the students who can calculate quickly and correctly talk about their own tricks 2) Read the cards and write the numbers directly. You can write the numbers on the cards. Students can write the numbers one by one. At last, students can show the numbers to organize proofreading and evaluation 3) Look at the problem and answer it by mouth. Let the students do it by themselves and then answer it by name 4) Listen and count, the teacher read the problem, let the students write the problem directly, show the problem after listening and count, organize the students to proofread and evaluate the result 5) Find a friend: let the students take the mental arithmetic card to find the number, etc. This tense and orderly training form can not only pay attention to every student, but also arouse students' great interest, and greatly improve the quality of group students' oral arithmetic practice< 5. Carefully design the calculation exercises
practice is an important way for students to consolidate knowledge and form skills. When designing exercises, we should pay attention to the following points: 1. We can design some exercises that can reflect the basis of calculation theory and the formation of algorithm for students to practice, such as the calculation process of 9 + 5 =. In this way, students not only understand the calculation theory, but also master the calculation method, playing a multiplier effect with half the effort. 2. Practice with easy to confuse contrast. In order to improve the students' identification ability and accuracy of calculation, we put the confusing questions together and let them distinguish and compare. 3. Often make mistakes and practice over and over again. The students use the new algorithm to calculate some of the typical errors on the blackboard, let the students find out the mistakes, correct them, can clear the obstacles for the students algorithm. 4. The practice should be taught according to the person, and the practice goal should be put forward in different levels. For the students with strong computing ability, the requirements can be improved; For students with slow thinking, the requirements are lower; For poor students, let them do the most basic exercises, give help and encouragement in practice, let them overcome inferiority, build up confidence, and really mobilize their learning enthusiasm< Sixth, strengthen the collation and analysis of wrong questions
we should pay attention to the collection and collation of students' mistakes, and analyze the ideological roots of their mistakes. In my usual homework, I prepare a notebook to classify and record the errors in students' calculation, find out the common errors and find out the typical errors, so as to "suit the remedy to the case" in teaching, especially find out the typical errors with unclear calculation and wrong methods, organize students to analyze the root causes, find out the "cause", and then design a certain number of targeted exercises, Purposeful "living therapy". At the same time, each student is required to prepare a wrong problem book, and the students are required to "sort out the wrong problems", record the mistakes in their homework book, exercise book and test paper in the wrong problem book in time, find out the reasons for the mistakes, and correct and classify them in time.
Hot content