I've thought about this too.

One thing I've considered for composition classes is providing disposables or Holgas as the tools for the class. Takes all the diddly fiddly nonsense out of the equation.

I like the Holga idea best because if you did a half day thing it could start with a lecture, continue with a lab/shooting session where chimping isn't possible, then finish with a developing/feedback/brainstorming session and the negs are big enough to see and share.