1. Pay attention to textbooks and review them comprehensively. Pay close attention to basic problems and carry out reforms when appropriate. Teaching is divided into five parts: algebra and algebra, equations, inequalities, functions and preliminary statistics. The geometry part is also five pieces of knowledge: the basic concepts of geometry, intersecting lines and parallel lines, triangles and quadrangles, and solving right-angled triangles and circles. In specific teaching, guide students to do knowledge induction while reviewing, and master laws, formulas and theorems. At the same time, carry out targeted, typical and hierarchical example exercises. 2. Pay attention to the understanding and application of mathematical ideas. For example, tell students the independent variable and the dependent variable, and let them write the analytical formula of the function.