"Attention, everyone," announced Miss Fazio. She moved from side to side to the brisk beat of some funky music. "You know the rules." It was the day of the Plunkett Street Move-a-thon. Everyone was super excited and had been training for weeks. All the desks had been pushed to the side of the classroom to make a big, open dance space. Miss Fazio's rules were simple- just keep moving for as long as you can.