How can we make school a joyful experience without sacrificing rigor? What's the best way to measure true learning? What's the purpose of school? The founders and teachers at the PlayMaker School, an all-game based school in Los Angeles, are asking those big, hairy questions that all teachers grapple with. At the PlayMaker School, they're trying to find their own answers through their constantly morphing, complex experiment. Here are their thoughts about these issues, in their own words.