Kimberlee Spaetig was the type of kid who just couldn't sit still. She'd always be jiggling a leg, tapping a foot. Now a self-confessed adult wiggler, Spaetig was in a staff meeting a few years ago ...

Students sit on wobble stools donated through DonorsChoose.org during second-grade reading class at Hexter Elementary. (Ting Shen/Staff Photographer) Peek inside Jennifer Cass’ second-grade classroom ...

John Kilbourne has seen the future of classroom seating, and it is round. Last semester Mr. Kilbourne, a professor of movement science at Grand Valley State University, gave his students the option of ...

DALLAS — Peek inside Jennifer Cass’ second-grade classroom and you won’t see kids sitting on desk chairs in neat rows. Some gently bounce on stability balls. Others rock back and forth on plastic ...