1, based on classroom teaching, combined with the arrangement, reflection, review and summary of wrong problem sets, to stimulate students' interest in learning and establish a clear knowledge network and structure.

2. Explore the methods, requirements, implementation plans and problems needing attention in sorting out wrong problem sets; Guide students to sort out wrong problem sets and explore the role of wrong problem sets in mathematics teaching.

3. By sorting out the wrong set of mathematics questions, students can review and improve the structure of mathematics knowledge in time and effectively, enhance their interest in learning mathematics and improve their learning efficiency; By guiding students to sort out the wrong problem sets, teachers can find out the problems existing in students' learning mathematics. In teaching, they can teach students in accordance with their aptitude, have a clear aim, highlight key points, break through difficulties, consolidate mathematics knowledge and improve students' ability to analyze and solve problems.