1. Pedagogy: Pedagogy is a science that studies educational phenomena and problems and explores educational laws. It aims to reveal the essence and laws of education and provide theoretical basis and guidance for educational practice.

2. Educational purpose: Educational purpose refers to the results or goals that people expect to achieve through educational activities. It answers the question of "what kind of people should education cultivate" and is the starting point and destination of education.

3. Educational value: Educational value refers to the significance or function of education to people and society. People evaluate and judge different educational activities, educational contents and methods through selection, comparison and judgment, and determine their value or significance.

4. Education system: Education system refers to the education system and norms of a country or region, including educational organization forms, management systems, policies and regulations, etc.

5. Educational practice: Educational practice refers to people's behaviors and actions of consciously engaging in educational activities. It is the basic way to realize the educational goal, and it is also an important standard to test the educational theory.

6. Educational research: Educational research refers to the study of educational phenomena and problems, which reveals the essence and laws of education through scientific methods and promotes the development and perfection of education.

7. Education reform: Education reform refers to the process of reforming and perfecting the existing education system, system, content and methods, aiming at improving the quality and efficiency of education and adapting to the needs of social development.

8. Educational evaluation: Educational evaluation refers to the process of evaluating and judging the effect and quality of educational activities. It provides basis and suggestions for improving education by scientifically measuring and evaluating all aspects of educational practice.

9. Pedagogical research methods: Pedagogical research methods refer to various scientific methods and means used in educational research. It includes many methods and techniques such as investigation, experimental research, literature research and case study.

The Important Position and Function of Pedagogy Principles in Education Discipline

1. Theoretical Guidance: Pedagogy principles provide systematic theoretical guidance for education, help people deeply understand the essence, purpose, value, structure and process of education, and provide theoretical basis for educational practice and reform.

2. Practical guidance: The principles of pedagogy not only provide theoretical guidance, but also provide specific guidance for educational practice. It helps educators to know how to design courses, choose teaching methods and evaluate educational effects, thus improving the pertinence and effectiveness of educational practice.

3. The principle of pedagogy is an important part of the discipline construction of pedagogy. It provides basic theory and methodology for other disciplines and promotes the development and progress of other disciplines.

4. Educational reform: The principles of pedagogy provide important theoretical support and practical guidance for educational reform. It helps people to deeply understand the internal contradictions and problems of education, put forward the direction and measures of reform, and promote the sustainable development of education.

5. Social value: The research on the principles of pedagogy and the development of educational practice are of great value for improving the quality and efficiency of education and promoting people's all-round development and social progress. It has trained a large number of high-quality talents for the society and contributed to the inheritance and development of human civilization.