These kids are from Patrice Roach's pre-calculus classes at Troy High in Fullerton. Apparently, this teacher decided it wasn't enough to scribble some equations on a chalkboard before a classroom of dozing teenagers. Instead, to help students understand the world of graphing equations, she choreographed a dance--The Graph Dance.
Awesome, and I'm guessing effective. (Though will students need to flap their arms during tests to help them remember stuff?)
Maybe math-inspired dances will be the next big thing. Teach me cosine, t-teach me how to cosine! (Via Angry Asian Man)