How to get to freedom hill from Tama central station

1. Now this kind of blockchain is mostly played by swindlers. Up to now, it has cheated me a lot of money. I don't want to play any more.

2. It's not a game. It can be sold. I'm interested in it

3. Money is a liar. Don't believe it

4. Drink a glass of milk (the original glass of milk, the whole stomach)
water is 1 / 2 + 1 / 2 = 1 cup (add two and a half cups, also the whole stomach)

6. So far, no country has issued digital currency. Now the digital currency is issued by swindlers. There is no future prospect. Bitcoin can't be invested. It's the second half. Don't let people cut leeks!

7. The level of calculation ability is closely related to learning and using mathematics well, so it is particularly important to improve students' calculation ability. For the first grade students, this is a very critical moment, is to lay the foundation for learning advanced mathematics knowledge. So, how to improve the calculation ability of the first grade students? Next, I would like to talk about some experiences in combination with my own teaching practice:
first, clarify the calculation theory, clarify the calculation theory
to improve the students' calculation ability, first of all, the teacher must let the students explain the calculation theory clearly. Most of the time, we may think that it is a waste of time for students to spend too much time on arithmetic in class, but this time is worth spending
students must learn to tell the difference between them, that is, calculation. It can be explained by making up stories. Of course, students' creativity is infinite, and we can't ignore it. As long as what they say is consistent, it is worth encouraging. As shown in Figure 1, you can guide them to say: the school bought 19 basketballs, lent out 3, and how many are left? And know the problem to solve is: how many left? That is to say, subtracting three loaned ones from the original total of 19 is to use subtraction. As shown in Figure 2, when the students first contact, some students will express the meaning of the picture, will use both hands to show that the number of turtles on both sides together, is calculated by addition. Students will also make up stories: there are four turtles in the race, and then there are three participating. How many turtles are there in all? That's to add them up (4 and 3). If students don't know how to deal with such problems, they can only rely on guessing. If we let them learn to reason slowly and clear up the reason, we should ask them more in class, why do we do this? What do you think? They are very willing to use the form of making up stories to say that this is a process of telling and sorting out calculation. When they see similar problems, the speed of calculation will be improved, and the accuracy will be improved accordingly< Second, the combination of hands-on, oral and brain, and the strengthening of oral arithmetic is a link that can not be ignored for the first grade students, which is the basis of written arithmetic. One of the biggest characteristics of oral arithmetic is that it takes less time and is fast, which is an effective way to improve the computing ability. In the exam, there are usually ten minutes of oral arithmetic, which requires students to calculate fast, but also requires the accuracy. So it is very important to train students' mental arithmetic. In teaching, I use this method: every student is required to prepare a "dictation book" (in fact, it is a single line book). Two or three minutes before class, I will say oral arithmetic problems, such as: 15-6 =, 12-7 =, 9 + 4 =... They will write the oral arithmetic problems they heard in the "dictation book" and write the number. Of course, it is difficult for indivial students, but if they persist for a period of time, they will make progress. After a period of practice, you can change the form of the topic accordingly, that is, increase the difficulty appropriately. For example: 17 - () = 8, 15 - () = 7, 12 - () = 5... Students can also play the role of teachers. Students at the same table (it's better to have "one gang one" collocation) can write a topic "dictation" and then evaluate each other. Now that I have just learned two digit plus one digit or ten digit, I will give them dictation about this type of questions and encourage them to test themselves or their classmates. This process can exercise their hands-on, oral and brain skills. Students can learn from each other and supervise each other. Moreover, in the process of their problem-solving, it is a new thinking process. Graally, their sense of number will be enhanced and their ability of oral arithmetic will be improved
thirdly, the training forms are diversified to stimulate students' interest in learning mathematics
I believe that everyone has the same feeling and is willing to do what they are interested in, and do it well. Learning is the same, students are interested in, in line with their psychological characteristics, will learn very seriously, special cooperation. People often say: "interest is the best teacher, interest is the source of motivation to promote learning." Therefore, if we want to improve the accuracy of students' calculation, we should start from their interests to make students feel that calculation is very interesting. It is a kind of digital game, which can help them and the people around them to solve problems and difficulties. So the design of the situation should be in line with the psychological characteristics of the first grade students, the mathematics situation life, children, interesting. I have learned that many first-year students like to play with a toy called "top". I will design some situations about this "top" in class: today, the teacher saw some very beautiful and highly effective "top" in the shopping mall. There are 12 in red, 20 in blue and 7 in white, Ask some questions about (additive) mathematics and solve them? As soon as students hear that it's their favorite "top", their brains turn very fast, and they are interested in mathematical calculation. They actively participate in and solve problems, and use their brains to compile some interesting problems to practice and consolidate, so as to improve their computing ability. In addition, "driving a train", "finding a friend", "Uncle postman delivering a letter", "sending a small animal home" and other forms of exercises can also be used in the classroom. The combination of visual calculation and listening calculation greatly stimulates students' interest, enhances students' enthusiasm to participate in the exercises, and ensures the improvement of their computing ability
in addition, I don't think that the more questions you do, the better. You should train specifically, focus on the key parts, and practice frequently if you make mistakes. And master the calculation skills and methods. There is special guidance for indivial students, and students are strictly required to develop the habit of careful calculation and standardized writing. Indivial students are careless in writing. They often write "0" like "6" and "4" like "9", which also affects the accuracy of calculation. Therefore, it is important to strictly require their writing habits
the above is just my experience in the teaching of computing. Of course, it's not a matter of a day or two to improve students' computing ability. The so-called "if you want to be quick, you can't achieve it". Teachers need perseverance and patience to get something

8. I didn't change my name! There is a free Hill College

9. Why don't you have enough time? It's not just time management.

you must have lamented why "time" is not enough“ Work takes up too much of your time and you don't have the energy to study, exercise and improve yourself. What should you do? "

we usually install a lot of "time management" apps on our mobile phones, such as "tomato clock", "anydo", "atrack" and other software to track tasks and time. How we hope to save time, so that we can save three or four hours every day

but this way of "saving time" must also make you feel exhausted

it wasn't until I saw a super brain hole about time that I suddenly realized that all my "time management" methods before were really weak

open a brain hole first
this super brain hole comes from a science fiction movie you saw, coming. It was adapted from Ted Jiang's science fiction stories of your life and others<

I have to tell the story before I can understand what this "brain hole" is:

one day, something big happened on the earth

all over the world, 12 alien spaceships suddenly arrived. These UFOs are very strange, and they don't take the initiative to say hello to human beings, so they have been suspended in the air

the military took the initiative to contact and found that they could not understand the alien language at all, so they invited linguist Louise (the heroine) to go<

Lois and several other scientists climbed into the alien spaceship and saw the alien with seven legs and a body like a bucket. Humans call them "seven limb bucket"

as a result, we found that the language of aliens is totally different from ours. It mainly refers to:

any language on earth has a chronological order, which is called word order

for example, "I eat" is a subject predicate object order, so is English. The Japanese word order is "I eat", the verb at the end, but there is a word order

and the language of the alien seven limb bucket is de word order, and the words "I", "eat" and "rice" come out in one puff

no matter how long the expression is, for example, let the seven legged bucket read the complete works of Shakespeare, it will finish with a puff

why

here, the female owner discovers a big secret that aliens live in "non-linear time". This is the Super Brain hole I want to share with you today

we all know that all human behaviors are based on "linear time", and what we do first and then is a process from point a to point B

and the aliens are in the "non-linear" time, they deal with all things at the same time. They don't have the past and the future. They can see the future as human beings call it

it's just like eating hamburgers, we eat bread, ham and cheese in chronological order; And aliens eat hamburgers, it is a bite< In other words, human beings pay more attention to the length of life; Aliens, on the other hand, focus on the width of life

at the end of the story, the woman master the alien language and acquire the ability to understand "nonlinear time"

she can see her future. She would marry a physicist and have a daughter; Her husband will eventually have an affair and leave her; When her daughter is 25 years old, she will also die in a skiing accident, and she can know that her academic career will suffer setbacks

in a word, the female owner's "life story" always happens in the present, and she needs to keep her decision-making under the condition of "full transparency of information"

the so-called "still love life after recognizing the truth of life"<

instead of racing against the clock, it's better to increase the thickness of time
this brain hole is big enough

previously, life was short, because you were limited to "linear time"

but the alien seven limb bucket tells us a thought: "you may as well live in" non-linear time. "

you may think that "nonlinear time" is totally science fiction

but when you think about it, in fact, human beings have turned it into reality

for example:

30 years ago, you had a Pentium 458 computer on your desk. It took 1 minute to open a picture, 5 minutes to download a song, and 40 minutes to install a software. Because of the limited bandwidth and computing power, the computer can only do things one by one, and the total process takes 46 minutes

but today, your phone can open pictures, next song and install software in 10 seconds

compared with the linear time of 46 minutes, these three tasks are completely completed in the nonlinear time

of course, computers are easy to understand. What about human beings? In fact, the same is true<

another example:

when we were studying, we practiced the piano. The teacher said that we must practice the skill of reading and playing the music, that is, playing while reading the music

this skill is very challenging to the brain, so it needs to be practiced deliberately, but many students just don't practice it. As a result, people who can read and play music can often finish a difficult new music within 30 minutes, while others may take three days

so, what time can I save if I have nothing to do? It's better to take time to improve your information processing bandwidth

I know a lot of people who are very keen on learning. They squeeze out all kinds of time to study every day and are still very anxious

their biggest problem is not lack of time, but the information utilization rate is too low. They read more than 100 books a year, buy 30 or 40 columns, and punch in the community every day. As a result, they can hardly remember anything

instead of racing against the clock, it's better to increase the thickness of every second<

the calculation principle of the brain
so, how to improve your time thickness every second

in fact, it refers to the total load of information that you can process every second

we often feel that we don't have enough time. In fact, it's not that we don't have enough time, but that your information processing is overloaded in unit time

for example, if you immediately close your eyes for 5 minutes and listen to your breathing, you will feel that the time is very slow. Because you block out most of the information (mainly the optic nerve signal), you will feel full of time

but if your general manager asks you to come to the office to find him in five minutes and receives a complaint from a VIP customer, his wife will send a wechat saying that the child suddenly has a fever. The information density is very high, and the time will be very little

so the core is that you should improve your information processing limit

how to do it? You have to figure out how the brain works:

we often say that the brain is used for thinking, which is not entirely true. Thinking is just one of the ways of information processing

you must have read fast and slow thinking. Daniel Kahneman proposed system 1 and system 2: System 1 refers to the automatic operation part of "subconscious", such as 2 + 3 = 5, which is automatically reflected by your brain; System 2 refers to the thinking part of "consciousness", such as 232 * 456. You need to use the thinking part

but the so-called system 1 is actually the "system mole" in the brain, and the "system mole" needs the continuous deliberate practice of system 2

our real perception of time is nothing more than the ranking of system 2

for example, after learning driving school, you know that when you just walk into the coach car, you are submissive to master the skills of "gear, acceleration and steering". New students will always concentrate on driving, because every skill will start slow thinking in system 2

after becoming an old bird, all the skills such as "gear, acceleration, steering" will be packaged into a "system mole" in your brain, which will be transformed into system 1. It is difficult for you to perceive the existence of time in this mole. So when you're driving, it's OK to talk to the people around you, or listen to the music

How do humans think

it is usually to connect the current event or thing with the "system mole" in the brain

for example:

when you go to an interview, you have a first generation iPod on your desk

the interviewer said to you, please describe the proct freely

in the end, you will find that the "system moles" displayed by different people are completely different. Empty minded people (left) may only say that this is a cross era MP3 proct. There are many people in the "system mole" (figure right), who can talk about "business model", "innovation network", "music market development", "jobs' reform", "advertising marketing" and so on

the upper limit of information processing for an object (Ipod) completely depends on how many "system moles" you have

the more "system moles" in your brain, the stronger your information bandwidth and brain computing power will be, and the stronger your ability to analyze, understand and perceive things will be. It also means the wider your time span

how to add "system mole"
then, how to add "system mole"? This, of course, refers to learning

however, we used to rely more on the stupid method of "accumulating linear time" to learn. When you know the concept of "nonlinear time", you should change your strategy<

take chestnut as an example:

there is a partner who has been in a traditional enterprise for 8 years. At this time, she wants to jump out and restart her career planning very much,

but she is faced with the fear of "no sense of security after she comes out", "helpless without excellent skills" and the confusion of "not knowing where her career is going"

the reason why career planning is so difficult is that it needs many "system moles"

for example, for fear, you may need to know the "psychological boundary" mole; For skills, moles such as "skills transfer", "value network" may be needed; For confusion, we may need positioning analysis tools such as "point line surface"

when you explore and complete these moles by yourself, the day lily will be cold

we have been familiar with a saying since we were young: "to raise troops for a thousand days, to use them for a while". This is what we learn. But it makes us waste our information bandwidth.

10. Go to bed on time, don't stay up late, and then work out problems in your mind when you have free time