This is part of the modules and contents in Wang Houxiong's textbook Complete Interpretation of Mathematics 1. You can feel it. Personally, I think it's ok. I feel that I don't have to think about tutoring as soon as I start school. In the early stage of senior one, I can adapt to the learning style and rhythm of senior three, with lectures as the main part and lectures as the supplement. Just do synchronous supplementary learning that matches the textbook, like the one above, with a long cover:

The so-called synchronization is one-to-one correspondence with textbooks and courses. For example, the complete explanation of the textbook mentioned above is based on the course, focusing on explanation and induction (called the complete learning plan of the textbook, focusing on practice and training), summarizing and explaining the knowledge points of each lesson, and giving examples to deepen understanding. Then there is the analysis of error-prone points, and there are exercises to consolidate after each class. Pay attention to the red box in the picture, which is the label of different versions of teaching materials and the symbol of synchronous teaching AIDS.