How to improve mental arithmetic and oral arithmetic

1. I do not deny that being good at mathematics is related to genius, but being good at mathematics is not exclusive to genius. 2. Mathematics tests the sensitivity of reaction, which is what we usually call mathematical consciousness. Only by associating all the relevant knowledge points can you solve a problem well. This is where mathematics is difficult to learn, but it is also where it shines.

3. The first thing to learn mathematics well is to learn it. Ask yourself whether you really want to learn it well. If you can really do this, then you will be one-fifth of the way to success.

4. Put it into practice. "Those who are determined, Things come true, the cauldron is broken and the boat is destroyed, the hundred and two Qin Passes finally belong to Chu. With hard work, God will not let you down, and you will be brave enough to endure hardships. Three thousand Yuejia can swallow Wu." In other words, start working hard from now on. I can introduce you to several methods: a . Preview in advance. At least twice as fast as the teacher's progress. At the same time, understand the after-class exercises. Remember to ask if you don't understand. b. Consult the teacher and buy one or two sets of papers that suit you. Of course, if you are lucky, your teacher will Some papers I have written for you. c. Do the questions consciously, learn to draw inferences from one instance, try to draw inferences from one instance, and comprehensively apply geometry and algebra knowledge (mainly applying geometry knowledge to solve algebraic problems) d. Learn to take notes, not math questions Every step must be memorized, but the simpler and clearer the memorization, the better. At the same time, after memorizing a question, stop and think about it, summarize the rules, and write down notes.

5. Mathematics learning It is somewhat different from the exam. The exam requires a state of excitement, but when doing the questions, you must be calm, review the questions calmly, answer the questions flexibly, learn to give up, and don’t lose the big for the small.

Finally , I wish you success. I send you a message "Nothing is impossible"

Want to learn mathematics well?

First, you must be interested in it and like it. Go to it,

Second, in class, you must concentrate. Your thinking must keep up with the teacher, your ears must be sharp, and never miss the teacher's words, because most of the teacher's words are "gold" Oh, it will be of great help in the future.

Third, you should do exercises immediately after class to consolidate the knowledge you just learned. This so-called exercise is only the exercise of basic knowledge. The foundation must be solid. Only in this way can we strive to make progress, and our grades can easily improve by leaps and bounds.

Fourth, the work before class, most people who want to learn know this...it is just two words, preview. This preview must be in place. Finally After the preview, you can do some basic exercises about it. It can also be called self-study

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During the exam, you must write the draft carefully and orderly, don’t write This makes it easier for you to spend less time checking, which is especially useful for fill-in-the-blank questions and multiple-choice questions.

First of all, it must be stated: There is no quick fix for any knowledge, and you have to work hard to gain anything. All I can do is to tell you to avoid detours, that's all, hope you do your best.

I have read a lot of answers to this question on the Internet about how to learn mathematics. Most of them are long and lengthy. On the surface, they seem very professional and reasonable, but they are of no use at all. After reading it, it didn't help at all. Why? Because most of these respondents failed to distinguish the target and did not shoot at the target. This is called shooting without aim. They forget the most fundamental point, that is, most of the people who ask this question are not good at mathematics, and some even find it difficult to follow the class. What is the use of telling them so many big principles? In my opinion, it’s better to have something simple and practical.

If you find it difficult to take the mathematics course, then you should:

1. The foundation of mathematics is very important. The characteristic of mathematics is that the inertia of the mathematics is too strong. A knowledge point is like every step we take upstairs. If you fail to learn a certain knowledge point well, it is like there is one missing step.

Some students said that I can understand what the teacher says in class, but why can’t I do the questions correctly? This is because the teacher said in class that it is like going up the stairs with the lights on. Even though there are one or two steps without them (as long as they are not connected) you can still go up. But when you are doing homework or taking exams, it is like going up the stairs with the lights off. You just go up by feel. , no one can help you point out where there are no steps, so it would be strange not to fall when you reach the step. What to do in this situation? The only way is to add the missing step. The method is to take time to read old textbooks. If you still can't understand an old textbook, it means you still have to make up for it. Put this book down for the time being and read the previous ones. Old textbooks. Only until you can fully understand it, then read back from this book to the textbook you are studying now. I personally think this is much more important than doing your homework in order to complete the task. This is the fundamental guarantee that you can keep up with the course. This is the case with a granddaughter of mine. One time she asked me a math question. There were four knowledge points in that question. I asked her, but she couldn't answer any of them. I asked her to read the corresponding part in the previous textbook before answering the question. She I actually asked my classmates, but of course I ended up copying the answers and completing my homework. She also said that I was not as good as her classmates, and I could only smile bitterly (Here I couldn't help but complain about the current education system. Homework, homework, and misbehavior are a rope that holds back the good students, and a rope that tightens the neck of the poor students. I often failed to complete my homework... This is a digression) In my opinion, it is much more important for so-called poor students to spend time learning knowledge points that have been forgotten before. . Of course, I am not telling everyone not to do homework here, but I am saying that you should spend appropriate time to make up for yourself.

2. To learn mathematics well, interest is the most important thing, everyone says so. But in the final analysis, one must have a good foundation to become interested. It is impossible for a person to become interested in something that puts him in trouble. Therefore, students with poor grades should still spend more time on the first step. If you are a middle school student, you should be able to understand the primary school textbook. If you can understand it, you will definitely have endless fun doing some elementary school math Olympiad questions. This way you can develop an interest in mathematics. With light fun, what else can’t be done!

3. Mathematics does not rely on rote memorization. To understand, how to understand is still based on the basics, so students with poor grades should spend more time on the first step. As for memorizing formulas, you only need to be able to remember the most basic ones, and you have to learn to deduce the rest by yourself. I couldn't remember many formulas when I was an inventor, but I can spend a minute or two in the exam room to learn what I need. Deducing the formula on the spot is much safer than trying to memorize it by rote, and it is absolutely accurate. This is called understanding and memory. The inventor has not been associated with textbooks for ten or twenty years, but the formulas required when solving problems can still be Derive it from its definition. The so-called good steel is used on the blade, that’s what it means. Don’t spend time on meaningless things. Rote memorization is unreliable. It is most likely to go wrong at critical moments. You can’t remember it at once, or you don’t dare to understand a symbol. Sure, this question is over, but it’s different if you can deduce it yourself. You only need to memorize a few formulas from a book. From elementary school to high school, the number of formulas you really need to memorize may not exceed twenty.

For example: area formula, just remember the area formula of rectangle and circle. Area of ??rectangle = base X height (S=ab). How can the area of ??a triangle be derived from this? If we draw a diagonal line in a rectangle, will we get two triangles with the same area? Of course there is: (S=ab/2)

What about the trapezoid? If we draw a diagonal line in a trapezoid, do we get two triangles? And their heights are equal? According to the triangle area formula, S=ah/2 bh/2=(a b)h/2. One thing to say is that you can just use special cases when deriving the formula, because you are not proving it. The invention maniac has not touched textbooks for many years, and no longer understands them. If you have any questions, you can discuss them together and make progress together.

4. Only by doing more questions and thinking more can you open up your thinking.

My objection to homework above is not to tell you not to do homework, but to my opposition to wasting time doing homework that is meaningless to you at first glance. You should spend this time working on the questions you really want to do. If you really feel that homework is a waste of time, you can apply to the teacher not to do it. I think the teacher should agree (your teachers now should be much more open-minded than our teachers at that time, right?)

5. When you encounter a good topic, you should think about one more question: that is - —How did this question come up? Can you come up with a similar question, a different question, or an improved question? This way you can easily solve it next time you encounter this question or a question similar to it. This is also a great way to train divergent thinking. It is also the most important way of thinking for inventors.

6. Listen carefully and ask the teacher or classmates for help if you have any questions you don’t understand. Confucius was not ashamed to ask questions until he understood them, let alone us!

7. Confidence is very important. You must believe that you can do it to succeed.

8. The last point is that it is also very important to have a good relationship with the teacher. It stands to reason that teachers should take the initiative to build a good relationship with students, because teachers are adults and teachers. However, due to various reasons, some teachers fail to do this. What should we do? There is no way, only villains don't care about the faults of adults. For the sake of their own future, just humiliate their own self-esteem. What does it matter? If you can do this, it means that your social survival ability has surpassed that of your teacher. Isn't this a good thing? Knowledge is not only found in books, but solving problems in life is real knowledge. Because the fundamental purpose of learning is to learn to survive.

I won’t go into too much nonsense. Finally, I hope you will fall in love with mathematics, so that you will definitely feel that mathematics is such endless fun. Still worried about not being able to learn math well? I wish you success!

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1. Preview reading before class. When previewing the text, you should prepare a piece of paper and a pen, and jot down the key words, questions and issues that need to be thought about in the textbook. You can do simple exercises on the paper for definitions, axioms, formulas, rules, etc. repeat. Key knowledge can be marked, underlined, circled, and highlighted in the textbook. Doing so will not only help us understand the text, but also help us concentrate on listening in class and listen with focus.

2. Classroom reading. When previewing, we only have a general understanding of the content of the textbook we want to learn, and we may not necessarily fully understand and digest it. Therefore, it is necessary to further read the text based on the marks and annotations made during the preview, combined with the teacher's teaching, In this way, you can grasp the key points and key points and solve difficult problems in the preview.

3. Review reading after class. After-class review is an extension of classroom learning. It can not only solve problems that have not yet been solved in preview and class, but also systematize knowledge and deepen and consolidate the understanding and memory of classroom learning content. After a class, you must read the textbook first and then do the homework; after a unit, you should read the textbook comprehensively, connect the content of the unit before and after, make a comprehensive summary, write a summary of knowledge, and check for gaps.

2. Think more

Mainly refers to developing the habit of thinking and learning how to think. Independent thinking is a must-have ability for learning mathematics. When students are studying, they should think while listening (lectures), reading (books), and doing (problems). Through their own active thinking, they can deeply understand mathematical knowledge. , summarize mathematical rules and solve mathematical problems flexibly, so that what the teacher tells and what is written in the textbook can be turned into one's own knowledge.

3. Do more

Mainly refers to doing exercises. To learn mathematics, you must do exercises, and you should do more appropriately. The purpose of doing exercises is firstly to become proficient and consolidate the learned knowledge; secondly to initially inspire the flexible application of knowledge and cultivate the ability to think independently; thirdly to integrate and communicate different contents of mathematical knowledge. When doing exercises, you should carefully review the questions and think carefully. What method should be used? Is there an easy solution? Think and summarize while doing, and deepen your understanding of knowledge through exercises.

4. Asking more questions

It means to be good at discovering and asking questions during the learning process. This is one of the important signs to measure whether a student has made progress in learning. Experienced teachers believe that students who can discover and ask questions are more likely to succeed in learning; on the contrary, students who don't know everything about a question and can't ask any questions themselves will not be able to learn mathematics well. So, how do you identify and raise issues? First, you must observe deeply and gradually develop your keen observation ability; second, you must be willing to use your brain. If you are unwilling to use your brain and don't think, you will certainly not be able to find any problems or raise questions. After discovering the problem, if the problem still cannot be solved after your own independent thinking, you should humbly ask for advice from others, including teachers, classmates, parents, and anyone who is better than yourself on this issue. Don't be vain and don't be afraid of being looked down upon by others. Only those who are good at asking questions and learning with an open mind can become truly strong in learning