Curriculum is the planning and design of educational objectives, teaching contents and teaching activities, and the sum of the implementation processes of teaching plans, teaching outlines and many other aspects.
In a broad sense, curriculum refers to the sum of educational contents and processes selected by schools to achieve their training goals, including various disciplines taught by school teachers and purposeful and planned educational activities.
A course in a narrow sense refers to a certain subject.
The word "curriculum" first appeared in the Tang and Song Dynasties in China. In the Tang Dynasty, Kong Ying Da gave a brief explanation of the sentence "Sleeping in a temple, a gentleman makes it" in The Book of Songs: "Teaching and nursing courses must be supervised by a gentleman and made according to law." But the meaning of the courses here is far from what we usually call courses.