Training course refers to the sum of training contents selected to achieve training objectives. Compared with the subject course of pedagogy, its utility is very prominent, and its goal is to transform it into work performance as soon as possible. Curriculum elements include: curriculum foundation, curriculum objectives, curriculum content, curriculum implementation and curriculum evaluation.

Class hour: the time unit of continuous teaching. 1 class hour is the time occupied by a class. According to the convention, basically a class in school lasts 40~50 minutes (mostly 45 minutes). In social institutions (generally training institutions), each class lasts for one to two hours.