Imagine telling your child to “turn off that computer game and go finish your homework.” Then imagine your surprise as he replies, “But this is my homework.” You might think he’s trying to pull a fast one – a computer game as homework? What kind of teacher would assign that? Well, actually, a math or science teacher would. Okay, but why? We asked that question to Eric Kopfler, Director of the MIT Scheller Teacher Education Program (MIT STEP) and the Director of The Education Arcade (TEA) in Cambridge, Massachusetts.