Teacher Liu Kun said: Compared with junior high school mathematics, high school mathematics has greatly improved in content, ideas and methods. Some people say it is a steep slope. Therefore, to learn high school mathematics well, I sum up it as "live a good Sandao Pass and highlight the key points". The first level is to grasp the internalization of theory. This theory is the definition, theorem, formula and law in the book. Some students have these things.

What you don't know needs a good understanding, but simple memory is not enough. In fact, the level of understanding of these things determines whether you can use them flexibly or well. Therefore, how to improve the understanding of these things has become the key.

The second level is to ensure the formation of good skills. Skills include concrete calculation, reasoning, drawing and language expression. These things must be done very regularly and skillfully. When you do it, you should reproduce your own ideas, that is, why you should do each step, and you should understand it in your heart. Some students don't attach importance to this skill. If the skills I just mentioned are not standardized, unskilled and do not reproduce the ideas, it will be very difficult for the skills to pass.

The third level is to acquire good mathematical experience, ideas and concepts.

Some students are concerned about "Do you really need to use sea tactics to improve your math scores?" Teacher Liu Kun thinks, is it ok to use the sea of Science of Tactics mathematics? Let me give you an example. There is a senior three graduate who usually believes in sea tactics, has done a lot of questions, and has done well in school exams and simulations. After the math exam in the college entrance examination, I went home and cried, indicating that I would not take the exam the next day. Parents and teachers do their work again and again, and finally go to the exam. This shows that the sea tactics are invalid. Why? Because the current college entrance examination attaches great importance to the examination of innovative thinking, that is to say, there are many questions that students have never seen before and can't find in the sea of questions. The more such problems account for, the more difficult it is to deal with maritime tactics. It is not a question of how many questions to do at all, but how to thoroughly understand some typical questions. In other words, you should not only know how to do it, but also know how to think. Only by reaching the level of thinking can we do well in the exam.