Teachers should pay attention to the following points in group cooperative learning: 1. Teachers should give full consideration to the collocation of members when assigning tasks in groups, and refine the questions A, B, C and D in the study plan to individuals, including good, medium and poor students. Therefore, it avoids the phenomenon that only a few students performed their tasks in the past, so that different students have different gains, avoids the problem of intra-group conflicts and better strengthens the spirit of unity and cooperation. For the cooperation, communication and presentation in class, I don't assign tasks first, but let them participate in the discussion of each topic. Give necessary discussion time before assigning tasks by drawing lots. This prevents some groups from only discussing their own problems and asking other groups' questions. At the same time, it also avoids the "hitchhiking" behavior of some students who get something for nothing. 3. Teach students the skills of teamwork. In group discussion, teachers should pay close attention to students' emotions, improvise and adjust the classroom atmosphere, so that students can think actively and seriously. In group cooperation, teachers should tour among groups to guide students to adopt correct and effective cooperation methods, and give timely guidance, encouragement and help. 4. Give students timely and objective evaluation in classroom teaching. Evaluation is particularly necessary to promote students' autonomous learning. Without necessary evaluation, it is impossible to effectively monitor students' autonomous learning, which will inevitably lead to the laissez-faire of the classroom. I adopted a combination of teacher evaluation and students' mutual evaluation, and paid attention to students' mutual evaluation. The competition between groups in class, the quantity and quality of students' answers in class will also affect their scores. In this way, the competition between groups is fierce, thus mobilizing the students' intention. Group cooperative learning is an important form of classroom organization in an efficient classroom. However, to reduce the inefficiency of students' cooperation and further improve classroom efficiency, it still depends on teachers' deeper discussion, attempt and research on classroom cooperative learning activities.