Balance and Motion show coming up

I'm going to do a Balance and Motion show for my daughter's 2nd grade class. The 2nd grade curriculum includes a unit on Balance and Motion, which is what inspired this show in the first place...my son's teacher asked me to do a piece about this a few years back, and then I took the show to some other schools.

All juggling shows use balance or motion in some fashion, so the props make a fun way to demonstrate some of the principles that the unit covers, like counterbalancing, forces, gravity, spin and roll, and an axis.

Learning to use a devil stick, for example, is all about balance. You allow the stick to fall to one side of the control stick, then tap it above the centerline to throw it to the other stick. You start a propellor trick by catching it below the centerline and following it as it rotates.