There’s a lot of movement in Miss Campbell’s second grade class at Hums Elementary in Mishawaka. The kids are not exactly bouncing off the walls, but they are bouncing! “We have stability balls that ...

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 ...

Andy Tullis / The BulletinKirstin Winslow, a second-grade teacher at Lava Ridge Elementary School, left, leads her students in a math exercise Monday while they sit on stability balls. The balls help ...

LINCOLN, Neb. (AP) - Mackenzie Wylie is an all-in sort of teacher. So when she discovered the bright green stability balls stored away in the basement of Saratoga Elementary, she decided to go all-in.