Yesterday, my Essentials class worked in teams to identify every word I had written on the white board. The teams would take turns sending one member to the board, and that student needed to either define the term on the board or give an example of the word. If they answered correctly, we would erase the word from the board. We continued until every word was erased.
I was actually quite impressed with my class and their knowledge of the material as well as their participation in the game.