The four textbooks of senior high school mathematics are compulsory 1, compulsory 2, compulsory 3 and compulsory 4 respectively. Among them, "Compulsory Mathematics for Senior High School" is the first teaching auxiliary material required by the order of senior high school mathematics learning stage; The main content of Compulsory Mathematics for Senior High School II is to understand spatial graphics and cultivate and develop spatial imagination ability through the overall grasp of spatial geometry. The main content of Compulsory Mathematics 3 for Senior High School is to explain and summarize the knowledge of algorithm, statistics and probability. The compulsory mathematics content of senior four includes trigonometric function, plane vector and trigonometric identity transformation.