There are certainly associated technical skills that can be taught effectively, where there’s a definite right and wrong technique. There’s also analysis, where you take an existing work and figure out how it produces the effect it does. That’s also teachable and can provide a font of inspiration of things to try, but there’s a world of difference between knowing why something works and being able to pull off the same trick yourself.
Beyond that, most classes in creative disciplines seem to be primarily a bunch of prompts to get the students to make lots of different things, and exercise their creativity.