. First of all, we should understand the characteristics of senior high school math exercises. Senior high school math exercises are arranged according to chapters. There are exercises at the end of each section, exercises at the end of each chapter, and then a summary of each chapter, followed by review questions. In this way, high school mathematics consists of exercises, exercises and review questions. From the characteristics of these exercises, exercises are simple applications of basic knowledge, exercises are general applications of basic knowledge, and review questions are comprehensive applications of basic knowledge. From the degree of problem solving, it is an easy, not too easy to a little difficult training process, and gradually improve students' ability to answer questions. Second, master the teaching principles of high school mathematics exercises. The primary teaching principle of exercise teaching is to choose and design exercises, which is a very critical step. Choosing a good topic can effectively improve classroom efficiency and get twice the result with half the effort, otherwise it will only increase the burden on teachers and students and have little effect. So how to choose? 1 For example, the teaching in the third stage of senior high school should be closely related to the teaching of "Teaching Curriculum Standards" and "Examination Instructions" and interpreted in depth, and one's own understanding should be reflected in the topic selection. 2. Based on the foundation, returning to textbooks is the basic strategy to improve the efficiency of exercise teaching. The setting of examples and exercises in the textbook reflects the ability requirements that this section of knowledge should meet. Exercise class should pay attention to the basic role and demonstration role of teaching materials, and pay attention to the review function of examples and exercises in teaching materials, so as to achieve new solutions to old problems and multiple solutions to one problem. 3, pay attention to the "double basics" intensive training "double basics" mainly refers to the basic knowledge and basic ability that students must master. From the teaching of exercise class, the main reason why students lose points when doing wrong questions is that their understanding of basic knowledge is not solid enough, such as: some common basic mathematical formulas are not accurately remembered and the basic mathematical thinking methods are not mastered, which should arouse our attention. Third, we should pay attention to the good exercise class, which is an effective means to improve students' problem-solving ability. To do exercises well, we must seriously consider the structure of exercises. The structure of the exercise class is generally divided into four links: showing the analysis and solution of the exercise and summarizing the specific solution. The specific teaching process can be arranged as follows: 1. The teacher first reviews the basic knowledge and basic mathematical thinking methods in this chapter, summarizes the internal relationship between formulas and theorems, and then presents relevant exercises in a targeted manner. 2. When analyzing the answers, teachers should make an in-depth analysis according to the common mistakes in each chapter to deepen students' deep understanding of the wrong answers, thus effectively improving students' ability to answer correctly. 3. Let the students finish some targeted exercises independently, understand the effect and ask the students to point out: "How do you think about the solution, and sum up the ideas to solve the problem, so as to draw inferences from others".