First, pay attention to the mastery of basic knowledge points and makeup awareness. It is to clarify what knowledge points the teacher talks about every day and how these knowledge points are used in the examples. When the teacher talks about what he has learned before but can't, he should write it down in a notebook in time and study hard later (mainly because he doesn't have time to review it systematically).

Second, we should pay attention to thinking and summing up. What the teacher said can't just be understood, but why should he do it? What else can I do? What knowledge points are used in this topic and how are they used? Persisting in thinking will definitely improve your problem-solving ability. For some problems, we should sum up their regularity and be good at classification, so that you can master not only a topic, but also a class of topics.

Third, insist on revision. The so-called revision should be done independently after the teacher said it, not copied. Fourth, we should have a sense of review. Man is not a machine, and it is impossible not to forget. According to your actual situation, it is good to review your previous homework for a while.

Fourth, we should have targeted learning methods. Summarize the shortcomings according to your own situation and adjust the learning methods in a targeted manner.

In short, as long as you have a serious learning attitude, determination and correct and pragmatic learning methods, I believe it is not difficult for you to learn mathematics. Come on!