Algebra Balance Replacement Canisters & Weights
Unlike any other balance, this balance makes it possible to physically show that -1 < 0. Weights placed in the outer pans represent negative integers and those placed in the inner pans represent positive integers. When you place a weight in each pan on one side of the center post, the balance remains level as (-1) + (-1) = 0. Great for small group work, the balance comes with four plastic pans, four plastic canisters, a set of plastic weights, and a Teacher's Booklet. Some assembly required.
