Unlike any other balance this one makes it possible to physically show that -10 Weights placed on 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 Ideal for small group work the balance comes with four plastic pans four plastic canisters a set of plastic weights and a Teachers Booklet Some assembly required Ages 11 to 17
Unlike any other balance this one makes it possible to physically show that -10. Weights placed on 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. Ideal for small group work the balance comes with four plastic pans four plastic canisters a set of plastic weights and a Teachers Booklet. Some assembly required. Ages 11 to 17