People only learn from being challenged and being able to use/practice what they are told. Focus solely on the creative side... posing, lighting, composition, balance, etc. because they'll have no control of anything else. Nothing is worse than being "taught something" without any control to put it to use. What they cannot practice/control is useless to them. Only teach them what they can use/practice with the tools entrusted to them. Empowerment is everything.