Junior high school general practitioners are better than in and out of class. According to relevant data, junior high school math classes are better in and out. Compared with physics and chemistry, mathematics has its particularity. Students inside and outside the physical chemistry class are interested in doing experiments, but mathematics is boring without experiments. In order to improve students' interest in learning, math teachers usually design some games, for example, several people make some geometric models in groups, such as puzzles, cylinders and other geometric figures, and students are also interested.