White Board Animation
I feel that this would be one of the easiest and most engaging activities that we have done in the class. It is simple and has an easy-to-use additive and reductive process. It is quick and could be done with almost any grade level (for upper level classes have the students construct longer and/or more abstract ideas and transformations). I felt this was a very effective idea for teaching stop motion to a medium to large classroom and would be even better if done with a small class.