1, it is best to preview the contents in the textbook before class. After class, we must do targeted exercises seriously and not be lazy. You can also calculate the classroom examples several times when reviewing after class. After all, you should take good notes in class. Good memory is not as good as writing. For solving mathematical and physical problems, it is not enough to rely only on the general ideas in the mind. Only through careful written calculation can we find the difficulties, master the solutions and finally get the correct calculation results.

2. Secondly, we should be good at summarizing and classifying, looking for the * * * relationship between different types of questions and different knowledge points, and systematizing what we have learned.

Finally, we should strengthen after-class exercises. Besides homework, find a good reference book and do as many exercises as possible (especially comprehensive and applied questions). Practice makes perfect, thus consolidating the effect of classroom learning and making your problem solving faster and faster.

4. It is inevitable to make mistakes in the learning process. Whether you are careless or just can't, you should habitually collect these mistakes. Each subject should establish an independent set of mistakes. When we review before the exam, they are the key review objects. Therefore, since you missed it once, you are not allowed to make mistakes twice. So as not to lose points on the same issue again.