How do the principles and theories of curriculum development expressed or spelled out in the curriculum of the class?

The principles and theories of curriculum development are used by educators and education planners to construct a curriculum appropriate to the students or the audience. When the curriculum have been drafted, it undergoes analysis in terms of what the students already know or should've known before the course. It is further evaluated according to its structure as well as the number of units accorded to it. When this is done, a course design or instructional design is developed based on the prescribed curriculum. The contents of the instructional design implemented to the students or the audience is how the principles and theories of curriculum development applied or spelled out in the classroom.