1. Read this book carefully. Many schoolmasters will carefully read the preview content before previewing, and have a general knowledge and understanding, so that knowledge will have a first impression in the brain and will not be easily forgotten in the future.

2. Study the knowledge points one by one. After you have a general understanding of the content, read the knowledge points in the book one by one and really understand the knowledge points thoroughly.

3. How to understand the knowledge thoroughly? After reading Step 2, many students will definitely have a question, how to understand the knowledge points thoroughly (⊙ _ ⊙)? Here, I will give you an example with the angle of a triangle published by People's Education Publishing House in the eighth edition as11.This chapter focuses on how to verify that the sum of the angles of a triangle must be equal to 180. This book introduces us to two ways to prove this theorem. Seeing this, we can think about what other methods can prove this theorem. What problems can be derived from this knowledge point? If I can, what should I do with these questions? Is there a simpler and faster way? If I were asked a question, what would I do? Think more about some problems and think about solving them. This chapter is similar. Or students with poor foundation can think about what problems are not clearly written in the book. They can sort out these questions and look for answers from the teacher's class.

4. Do the basic questions. After understanding the knowledge thoroughly, you can do some basic questions in books or workbooks, so that you can find your own problems most easily. After you find the problem, you should actively solve it and analyze why you are wrong, instead of procrastinating.

5. Listen carefully in class. Although I have previewed it, I still have to listen carefully in class. Questions that you don't understand in preview can generally find answers. Because of the guidance of teachers, students can take fewer detours and master knowledge more firmly!