The knowledge of high school is actually a detailed expansion of the knowledge of junior high school, and the connection with junior high school cannot be said to be great. Then, junior high school students are still very passive in their relative study. When they get to high school, we need to refine some knowledge ourselves through practice. In addition, we should learn to teach ourselves and not be too passive. However, you can think that it is better to learn knowledge first. There is a certain order in the knowledge learning of high school textbooks. For example, if you want to read a compulsory book, you should learn it from the first chapter, because the learning of the later centralized functions is based on it, so it is best to learn it from the beginning. In addition, if you can borrow high school textbooks, you'd better borrow corresponding exercises at the same time. It is very important to do the corresponding exercises well in the process of mathematics learning, which can also be consolidated to avoid forgetting after reading them! ! !