Insist on previewing before class-this is a cliche, but it is very important. Preview doesn't need you to spend too much time. You can know what you have, what you can understand and what you can't understand at a glance, so that the class will be targeted.

Review in time after class. Be sure to read the textbooks and notes before you do the exercises. If you don't understand any questions, you must go to the teacher to answer them in time.

When you lie in bed at night, you must be able to recall the contents of the day. If you feel that you can't remember anything, you must get up and read your notes during the day.

Be sure to ask more questions. Students who don't ask questions in mathematics must not be top students in mathematics-not bad, of course, but not the best. Try to master a problem every time you do it-being able to tell others or yourself is called mastery.

After each chapter, take a piece of paper, list the contents of this chapter as much as possible, see how much you can list, and then compare it with your notes to see what you are unfamiliar with.

If you insist on doing this, I believe your math will not be too bad.