(1) Ideal curriculum: refers to some research institutions, academic groups and curriculum experts.

Suggested courses;

(2) Formal curriculum refers to the curriculum plan, curriculum standards and teaching materials stipulated by the administrative department of education;

(3) Comprehension courses: that is, courses that teachers understand;

(4) Courses implemented: that is, courses implemented in or after class;

(5) Experience course: that is, the course that students actually experience.

Each of the above curriculum definitions has some positive features and obvious shortcomings to some extent. Curriculum definitions with different contents reflect the basic viewpoints and orientations of the definers, and there is a written or unwritten theoretical basis behind each curriculum definition.