1. Make a feasible review plan and carry it out seriously. Find out the key points and difficulties of junior high school mathematics, and take the outline (curriculum standard) as the basis for review, so that the review is targeted, purposeful and feasible. When reviewing, it is necessary to find out the difficulties, doubts and error-prone reasons of all knowledge points, so that you can get twice the result with half the effort.

2, on the basis of the original knowledge, classification. Clarify the key points of each unit and form a knowledge network system. We can make full use of the concept paper made in the third grade and the lecture notes made in the usual class to integrate the mathematics focus of the third and fourth grades, which is helpful to master the mathematics of the third grade and fully understand the mathematics focus and difficulty of the fourth grade.