The theoretical explanation of mathematics book knowledge makes students' cognition limited to abstract thinking, which is far from students' perceptual cognition, and will produce cognitive obstacles, which will naturally make students feel that mathematics is a boring and difficult subject and will inevitably lose their interest in learning. Modern mathematician Hua said that the main reason why mathematics gives people a dull and mysterious impression is that it is divorced from reality. Mathematics is closely related to life, originated from life and applied to life. Teachers should start from students' familiar life background and life experience, realize the unity of book theoretical knowledge and life perceptual knowledge, mathematize life problems, make abstract mathematics interesting, vivid, easy to understand and close to life, thus stimulating students' interest in learning, allowing students to learn to observe, analyze and solve problems in daily life with mathematical thinking, and enabling students to deeply understand the life meaning and value of what they have learned, thus generating internal motivation for learning. Due to the limitation of teaching materials, teachers can dig up many materials in their lives to supplement their own explanations.

Students are the object of education and the master of learning. They are the main body of understanding and transforming the world. Teachers should focus on strengthening students' subjective awareness of learning, change from "learning from me" to "I want to learn" and invest in training as a master. In mathematics teaching, teachers should establish the teaching structure of autonomous learning activities, guide students correctly and skillfully, so that students can actively participate in the whole process of learning and get success and happiness in the process of learning. In teaching, I constantly stimulate students' autonomy, make them independent from the perspective of thinking, make students have clear goals and participate in depth, and students have ample opportunities to show their learning ability. Make the process of learning mathematics gradually become the activity process of students' self-control, self-regulation and self-control, and at the same time make independent exploration become a powerful fulcrum of students' personality autonomy. Let students fully realize the happiness of acquiring knowledge independently, enhance the initiative of learning and improve their interest in learning. And let students actively seek the best method in their usual exercises, so that their mathematical ability can be improved rapidly. At the same time, I am good at discovering and guiding students' thinking methods, so that students can understand and improve their understanding and get the best way of thinking.