2. The constancy of the question boundary and the uncertainty of the answer;

3. The extensiveness and interdisciplinary nature of the subject foundation;

4. Diversification of theoretical types and subject paths;

5. The comprehensiveness of subject attributes and the hierarchy of theoretical structure.

The content of comprehensive educational knowledge includes pedagogy, general psychology, educational psychology, educational laws and regulations, teachers' morality, and possibly teaching skills and educational outlook.

1, pedagogy

Pedagogy is a social science that studies human educational activities and their laws. Through the study of educational phenomena and problems, the general laws of education are revealed.

2. General psychology

The research scope of general psychology includes the theoretical principles and methods of psychology, psychological process, psychological state and the basic principles of individual psychological characteristics.

3. Educational psychology

Educational psychology is a social psychology that studies human learning, the effect of educational intervention, teaching psychology and school organization under the educational situation.

4. Education laws and regulations and teachers' morality

Education regulations and teachers' ethics include education regulations and teachers' professional ethics. Education laws and regulations refer to the basic principles of education law and the relevant laws and regulations in teachers' professional life. Teachers' professional ethics includes the connotation, principles and norms of teachers' professional ethics, the significance, principles and methods of teachers' professional training, and teachers' classroom behavior.

The above are all answers to the comprehensive knowledge of education and the characteristics of pedagogy.