Our Four PAN ALGEBRA BALANCE will make a perfect addition to your math manipulatives! Unlike any other algebra balance, this balance will make it possible to physically show 10. Weights placed on the outer algebra balance pans represent negative integers and those placed in the inner pans represent positive integers. Place a weight in each pan on one side of the center post and the algebra balance remains level as (1) + (+1) = 0. This algebra math manipulative is perfect for small group work. The balance comes with four plastic pans, four plastic canisters, a set of plastic weights and a Teacher's Booklet. Minimal assembly required. Ages 11 to 17
