This is a personal opinion method: first, listen to the content in class. In my opinion, teachers are not afraid to teach new lessons. Even if they didn't understand it at that time, it was easy for them to understand the contents of the new lesson when they were reading, because none of them were too complicated, and they were all basic theories. Be sure to do the questions carefully, and thoroughly understand every step, especially the classic questions, and understand the ideas and methods of solving problems. Second, brush the questions. When you do a problem, you must do something simple first, and then do something complicated. If you think of a problem that you don't want to think about for the time being, skip it quickly and come back and think about it when you are free. Forming this habit is good for the exam. Then when you come back to solve the problem, first look at the examples in the materials and see if there are any solutions to the problem. Of course, some questions are too difficult and need divergent thinking to do. If you can't, use reference answers to understand their solutions and ideas, or consult a teacher. Another point is not to think that it is enough to do too simple questions, but to lay a solid foundation. Third, the wrong question is necessary. Write down the mistakes you ignored, write down the problems you really haven't solved, turn it over from time to time, remember what you did wrong, and make sure you won't make mistakes next time. After all, for exam-oriented education, the best way to learn high school mathematics well is to do more questions and master more types of questions. I am currently a senior three, and my math is "May 3rd" or "March 2nd". As the top 50 students in the whole grade 1000, I think what I said is reasonable.