The absence in art of a well-formulated and systematized body of literature makes the problem of teaching a perplexing one. The subject is further complicated by the elusive and personal nature of art. Granted that a student’s ultimate success will depend largely on his natural talents, the problem still remains: how best to arouse his curiosity, hold his attention, and engage his creative faculties.
Go read the whole piece. Just fantastic, fascinating and so very relevant.