1. preview before class: preview what the teacher will say before class, so that you can better understand the teacher's explanation.
2. Listen carefully: Listening carefully is the most important thing in class. You can ask the teacher in time if you don't understand anything.
3. Take notes: In class, you can take some notes appropriately to facilitate your review.
4. Do more exercises: Advanced mathematics needs a lot of exercises to master, so do more exercises.
5. Communicate with classmates: Communicating with classmates can help you better understand knowledge points and help you find your own shortcomings.