1, preview before class, have doubts and curiosity about what you have learned;

2. Cooperate with the teacher in class to satisfy the excitement of the senses;

3. Think about problems, pay attention to induction, and tap the learning potential;

4. Pay attention to the teacher's mathematical thinking when explaining in class, and ask why you think so and how this method came into being;

5. Let the concept return to nature. All disciplines are summarized from practical problems, and mathematical concepts also return to real life. For example, the concept of angle, the generation of polar coordinate system and the generation of polar coordinate system are all abstracted from real life.