Hi William:
You've listed some good alternative activities. As instructors, we might ask ourselves "if there is value in doing an activity as a back-up plan, why not consider doing the same or similar activity as part of the regular lesson plan".
This is a rhetorical question intended to stimulate thought about the value of variety introduced into lessons and class sessions. Our creativity will be appreciated by students (even though they don't always express it.
Regards, Barry
