The mutual promotion of regular teaching is an interactive activity between teachers and students, including teachers' teaching and students' learning, both of which are indispensable. The subject of teaching is teachers, and the subject of learning is students. Both teachers and students are in an active position. Teachers should take students as the center, teach students in accordance with their aptitude according to their foundation and differences, and effectively cultivate students' interest in learning and self-learning ability, so that students can learn actively. Learn to grow into a thoughtful, knowledgeable and moral person.

Re-learning method and flexible teaching methods are important guarantees to improve teaching quality and learning efficiency. Learning first, teaching second, fully mobilized students' initiative, and made teachers' teaching and students' learning more effective.