Teaching theory accomplishment is the core of teacher's professional quality. In the specific teaching practice, each teacher will form some understanding and understanding of teaching problems, and there are two main types of teaching theories supporting these understanding and understanding. One is explicit theory, which is easy for teachers to realize and report, and more likely to be changed by new information from the outside world. However, such knowledge cannot have a direct impact on teaching behavior. The other is implicit theory, which directly influences teaching behavior but is not easily recognized by teachers and is not easily changed by new information, but is more influenced by culture and habits. Of course, the two theoretical knowledge is not completely separate, explicit theory can be converted into implicit theory, which has a positive impact on teaching activities. Since teachers are not aware of what theory they adopt in their teaching practice, it is not easy to find the difference between their teaching behavior and the explicit theory. In this case, teachers' teaching behavior will not change naturally. Teachers carefully observe and analyze their own activities and students' performance in teaching, and through mutual observation and discussion between teachers, make explicit theory applied to teaching, and enrich and develop implicit theory in the process of continuous application.