Teachers' professional knowledge is a knowledge system that teachers must master, including ontology knowledge, conditional knowledge, practical knowledge and operational knowledge. This paper will introduce these four dimensions in detail to help you better understand the professional knowledge of teachers.

Ontology knowledge

Ontology knowledge is the knowledge of a specific subject mastered by teachers and the cornerstone of teachers' profession. Including the subject knowledge and related theoretical knowledge taught by teachers.

Conditional knowledge

Conditional knowledge is knowledge about pedagogy, psychology and teaching methods so that teachers can better understand and guide students' learning process. It is an indispensable part of teachers' professional knowledge.

Practical knowledge

Practical knowledge is the classroom situational knowledge accumulated by teachers in actual teaching, the crystallization of their years of teaching experience and the embodiment of their wisdom. Including all kinds of problems encountered by teachers in the teaching process and their solutions.

Operational knowledge

Operational knowledge is the skills and methods that teachers master in actual teaching, including various teaching tools and technologies used by teachers in teaching. It is also an indispensable part of teachers' professional knowledge.