Teaching theory, also known as teaching methods and teaching theory, is a science that studies the general laws of teaching. Pedagogy is an important branch of pedagogy, which includes the position and role of teaching in the whole educational activities, teaching objectives and tasks, the nature and laws of the teaching process, teaching principles, teaching contents, teaching methods, teaching organization forms, teaching means and teaching evaluation. At present, with the development of educational science, it has become a relatively independent discipline. The research of teaching theory is based on the general theory of pedagogy, and theoretically summarizes the historical inheritance, practical teaching experience and research results of teaching methods of various disciplines.