1. Informal education: refers to the primitive form of combining educational activities and existing forms with social life and production. There are no stable educators and educated people, and there are no fixed educational places and standardized educational contents. Education in primitive society belongs to this state.

2. Formal education: refers to the fact that educational activities have been divorced from social production and life and become a professional form of social practice, with fixed educators, educatees, educational places and relatively standardized educational content. School education belongs to this form. The so-called education should be taught and disseminated as a social culture. Social culture, including art and science, should include three levels of content. Refers to high-level culture, that is, abstract and intangible, such as social psychology.

3. Transformation: From the formal point of view, education has gone through the process of informal education, formal education and institutionalized education. Educational process refers to the process of school education. That is, the process of educators and educatees participating together and using various educational measures to achieve educational goals. The educational process is a process in which educators use educational influence purposefully and systematically to guide or promote the transformation of the educated body and mind to the expected goals of educators.