Most sixth-graders don't expect to ever need to identify integers, but at Quest, it's the key to a code-breaking game. In another class, when creatures called Troggles needed help moving heavy objects, the class made a video instructing how long a ramp they should build to minimize the force they needed to apply. "They're picking concepts up as well as, if not better than, at other schools," says Quest's math and science teacher Ameer Mourad. Beyond make-believe, Quest is the first middle school to teach videogame design. Salen says building games teaches students about complex systems, which will prepare them for growing fields such as bioinformatics.