In the teaching process, teachers can use flexible and diverse teaching methods to carry out subtle moral education for students, such as research-based learning and cooperative learning. In mathematics, there are many rules and laws that teachers can't teach orally. At this time, students can be guided to discuss, think and summarize together. This can continuously cultivate students' various abilities, and also cultivate students' ability of unity and cooperation. As far as teaching methods are concerned, group cooperative learning can be adopted. Group cooperative learning has a common idea: students should be responsible for their own learning and others' learning, and students should learn on the premise of benefiting themselves and others. In this situation, students will realize that there is an interdependent relationship between individual goals and group goals, and only when other members of the group succeed can they succeed.