My daughter has a teacher who does an excellent job differentiating for the needs of her students. Thus when Bailey showed an interest in electricity and compacting through the unit, she allowed her to create a video game to help her classmates review for the test.
Needless to say, she earned a 100% on the final unit test and she new the content forward and backward. In the process of creating the game, she really had to "know her stuff!"
Her classmates had a lot of fun reviewing with the game and test scores were higher than normal for the entire class! Many students now want to learn how to create these games.