First, pay attention to the lecture in class and review it in time after class.

Second, do more questions appropriately and develop good problem-solving habits.

Third, adjust the mentality and treat the exam correctly.

During the exam, take every question seriously, do a good job in every meeting, try to keep the correct question (each question should be counted several times), and try to make it impossible (it really won't) to ask people to understand immediately after the exam.

Fourth, prepare an exercise book, copy every wrong question (original wrong question), only copy the correct answer, look at it often, and remember what to do.