Richard.
I also enjoyed this class. I particular getting the proper labeling of intrinisic and extrinsic, never thought of the students in the manner. I am known for getting my students engaged, and love being creative, thinkng outside of the box; however i really did attain an additional understanding on those that do and don't - and the importance of in some cases rewarding more than others. I also said they same thing -this makes sense now.
Have you applied any of these steps?
Chemo Faustino