Yoga Balls Classroom

February 20, 2013 - 4:30 AM
Robbi Giuliano teaches her fifth grade class as they sit on yoga balls at Westtown-Thornbury Elementary School Monday, Feb. 4, 2013, in West Chester, Pa. Replacing stationary seats with inflatable bouncers has raised productivity in her fifth-graders at Westtown-Thornbury Elementary School, making students better able to focus on lessons while improving their balance and core strength, she said. (AP Photo/Matt Rourke)