Want to keep your kids over five years moving? Then you need a balance board and this cool Electro Balance Board is the wooden Simon Says of Balance Boards. Kids follow along to the increasingly hard directions and will improve memory, speed, and agility. 
Can’t be too bad for those core muscles either!
Oh, and did I mention it’s tons of fun?
(I bet you’ll want to try it, too.)
It’s won the Oppenheim Best Toy and the Better Homes and Gardens Best Toy!
How would the Balance Board fare in comparison to walking and balancing back and forth on a seesaw? There is more to that probably than agility and adaptation of core muscles. Flexibility and quickness likely.