Prepare lessons well in the review class. Generally, a review class is a summary of a chapter or a unit.

First of all, we should lead students to review what they have learned in this chapter. It is best to present it in the form of blackboard writing, and in addition, it is mainly based on students' memories, and the teacher mainly makes supplements and tips.

Secondly, important definitions, theorems, formulas, proofs of properties, speeches and emphasis.

Third, by analogy, teach students how to use what they have learned to solve practical problems through exercises, and explain the problem-solving ideas in detail on some fixed problems.