Four elements theory: that is, the elements of educational activities are divided into educators, educatees, educational contents and educational means. Five elements theory: This view holds that education consists of educators, educatees, educational methods, educational contents and educational environment. Six elements theory: This view holds that the basic elements of education are educators, educatees, educational content, educational means, educational channels and educational environment.

Educational elements refer to the components that constitute educational activities and the internal conditions that determine the development of education. As far as educational practice is concerned, its constituent elements are: (1) Educators, with their own activities, cause and promote the development and changes of the educated body and mind in line with the purpose; (2) Educated people reflect the completion of the education process with changes that meet the purpose; (3) Educational influence is a means of educational practice, and it is the sum of all intermediaries that are placed between educators and educatees and link them, such as textbooks, teaching methods, educational technology and teaching organization forms. ? [ 1]?

As far as educational content is concerned, due to the different theoretical and social conditions, its constituent elements are also different. For example, during the Western Zhou Dynasty in China, "six arts" (ritual, music, shooting, imperial, calligraphy and mathematics) were the basic elements of education. On the basis of classifying human souls, Aristotle in ancient Greece determined that education should have three elements: physical education, moral education and intellectual education. Humanist educators in the European Renaissance paid attention to children's physique and aesthetic education while emphasizing intellectual education and moral education. Based on the idea of cultivating "a necessary character recognized by everyone from the perspective of morality, intelligence, physique and behavior", the utopian socialist Owen summarized the elements of educational content as intelligence, morality, physique and behavior. According to Marxist theory about the all-round development of human personality, the elements of socialist education content are moral education, intellectual education, physical education, aesthetic education and labor technology education. ? [ 1]