1. A good lesson with correct educational concept. First of all, we must have a correct educational concept as a guide. Because in a sense, mathematical thoughts and methods are the soul of mathematical knowledge system.

2. Perfect teaching design should learn from excellent teachers, cooperate with colleagues, and be carefully preset based on students' learning starting point and their own teaching style.

We should respect the needs of students. Protecting students' self-esteem and self-confidence Students in different classes have different characteristics, and students in the same class also have certain differences. A good course should pay attention to students' differences and respect the needs of different students in knowledge, ability and interest.

4. Give students time to think. Good classroom teaching should be rich.