How important is the first round of review for high school entrance examination mathematics?

The course has started - junior high school students can improve their scores quickly. Suggestion: The first round of review is very important and is the foundation. The goal of the first round is to firmly understand and master the major knowledge points in the book, especially the typical examples, to understand and cooperate with them. A certain amount of questions, consolidation, reviewing the past and learning new things. In the second round, by repeatedly doing a large number of questions, you can practice your proficiency in the knowledge in the book, draw inferences from one example, and improve your level. In the third round, check for omissions and fill in the gaps, and return to the books.