The most detailed and best information books are textbooks. Don't underestimate the textbook. The arrangement of all information books is derived from it. Although its content is simple and easy to understand, the topic is not difficult. On the surface, it doesn't seem to be very helpful to the college entrance examination. That's because more than 90% of students don't really play its role. In fact, it is not difficult to make it work. It takes a lot of time and energy to chew it thoroughly, depending on whether you have the patience. When I say thoroughly, I mean reading the textbook many times and stringing together the knowledge points of each chapter by myself. If you can say the contents of the textbook chapter by chapter with your eyes closed, you will think that you have passed the first level. The next step is to do the questions, and do the questions in the textbook. Although simple, they are all type questions. The basic configuration of the college entrance examination questions is picked from the textbook, so once you master every question in the textbook, you will feel deja vu. This feeling is great! The next step is to test you. Make a knowledge network arrangement for the whole book. Think of what you can think of, such as set, and then map, function, original image, domain, range, and their relationships, similarities and differences. This is the unity of knowledge. Only when you know knowledge like the back of your hand can you not be confused about what it will test you. Anyway, don't be impatient in doing this job. I hope you can calm down and learn the basics from the teacher.

I wish you success with my own efforts!