You should look at the student's shortcomings, and then do some supporting exercises according to his shortcomings. Some students who need to make up lessons are often underachievers, but they lack the foundation. They just need to make up basic concepts and basic simple topics. But the knowledge of senior one focuses on calculation, and many students can't calculate, especially the topics of absolute value and number axis. They either missed it or forgot to summarize it. If the absolute value is removed, it won't be a bit complicated. Solving the common weaknesses of linear equations and application problems can be reviewed by special topics. The following chapters and the fourth chapter are basically unnecessary, and most of them will. Others, just look at the specific situation analysis.