To learn math well, you must first ask yourself if you really want to learn it well. If you can really do this, then you have succeeded by one fifth (it should be no exaggeration).

A. preview in advance. At least faster than the teacher's progress, and at the same time understand the exercises after class, ask if you don't understand.

B: Ask the teacher and buy some papers that suit you. Of course, if you are lucky, your teacher will give you some of his own papers, but it is unlikely.

C. Do problems consciously, learn to draw inferences from one another, try to draw inferences from another, and combine the comprehensive application of geometry and algebra knowledge (mainly applying geometry knowledge to solve algebraic problems).

D. learn to take notes, not every step of a math problem, but the simpler and clearer the better. At the same time, after remembering a question, stop to think, sum up the rules and write down the contents to be marked.

E. there are some differences between math learning and exams. The exam needs a state of excitement, but when you do it, you should calm your heart, calmly examine the questions, answer them flexibly, learn to give up, and don't lose big because of small.

Finally, I wish you success.