1. Expansion of the research foundation of pedagogy

Pedagogy began to develop from "simple little pedagogy" to "complex big pedagogy". At first, it was just psychology, physiology and ethics, and later it developed into sociology, statistics, economics, politics and aesthetics. Since then, marginal disciplines and interdisciplinary disciplines of pedagogy have gradually emerged, and the education system has been expanding. The research foundation of pedagogy is not limited to the initial stage of philosophy and psychology, but extends to a series of disciplines such as physiology, ethics, sociology, statistics, economics and political science. In teaching, teachers should first stimulate students' interest, attract students through rich content, make students curious and induce them to have a "positive desire to explore" from the subconscious. Interest is the intrinsic motivation of students. In order to let students learn actively, teachers should try to cultivate students' interest in learning in teaching, so that students can learn in a happy mood, so as to achieve the best teaching effect.

2. Expanding the field of pedagogy problems

Usually, each subject has its own specific problem area. With the development of the times, new problems are constantly being discovered and dealt with, so the problem domain of this discipline is also expanding. With the accumulation of educational knowledge and the rise of sociology, ethics and other disciplines, educational disciplines have developed from one pedagogy to many pedagogy.

3. The development of pedagogy research paradigm

Paradigm is a symbol of the maturity of a discipline, and its basic meaning is that the discipline is recognized by scientific groups, including the basic norms and structural framework formed by the content, research elements, processes and methods of the discipline. The educational research paradigm has also experienced historical development, showing a new development trend. Today is an era of advocating diversified development, respecting individuality and tolerance. This provides a good social environment for the coexistence of various educational research paradigms, and it also inevitably requires the diversified development of educational research paradigms. The relationship between various research paradigms in history is not contradictory, but complementary and mutually supportive. Any paradigm can be studied from different aspects with different research methods.