Mainly refers to reading math textbooks carefully. Many students have not developed this habit and regard textbooks as exercise books; Some students don't know how to read, which is one of the main reasons why they can't learn math well. Generally speaking, reading can be divided into the following three levels:

Preview reading before class. When previewing the text, you should prepare a piece of paper and a pen, write down the key words, questions and problems that need to be considered in the textbook, and simply repeat the definitions, axioms, formulas and laws on the paper. Key knowledge can be approved, marked, circled and marked in textbooks. Doing so not only helps us to understand the text, but also helps us to concentrate on listening in class.

2. Read books in class. When previewing, we only have a general understanding of the contents of the textbooks to be learned, and not all of them have been thoroughly understood and digested. Therefore, it is necessary to read the text further in combination with the marks and comments made in the preview and the teacher's teaching, so as to grasp the key points and solve the difficult problems in the preview.

3. Review reading after class. After-class review is an extension of classroom learning, which can not only solve the unresolved problems in preview and classroom, but also systematize knowledge, deepen and consolidate the understanding and memory of classroom learning content. After a class, you must read the textbook first, and then do your homework. After learning a unit, you should read the textbook comprehensively, connect the content of this unit before and after, summarize it comprehensively, write a summary of knowledge, and check for missing parts.

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