…also, when you say “form sensitivity” are you talking about the emotional reaction to form composition? If so, creating mood boards and discussing how the designs on those boards express a certain mood could also be a helpful exercise in your team. It sounds like a quick review of 1st year 3D composition where you explore how to express different emotions and ideas with form could be helpful too. I kept my 1st year composition workbooks just for that.
There’s also this book:
…but having read it, there isn’t much here that actually analyzes form, it’s more of a biography.