1, change ideas and refresh ideas: Mathematics teaching activities must be based on students' cognitive development level and existing knowledge and experience. Teachers should stimulate students' enthusiasm for learning and help students gain experience in mathematics activities in the process of independent exploration and cooperation.
2. Prepare students and determine the subjectivity of students' learning: teaching is to serve students' learning, and students should be the center when preparing lessons, so that the whole teaching activity can be carried out around students scientifically and reasonably.