Emphasizing that students are the main body of learning, teachers should mobilize students' learning enthusiasm and realize the combination of teachers' leading role and students' enthusiasm; 2. Emphasize the full development of students' intelligence and realize the combination of systematic knowledge learning and full development of intelligence;

3. Emphasize the stimulation of students' internal learning motivation and realize the combination of internal motivation and learning responsibility;

4. Emphasize the connection between theory and practice, and realize the combination of book knowledge and direct experience.