Manipulatives

Four-Pan Algebra Balance

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. Students use the balance to derive th... More.

VisuAlgebra Blocks

Help students visualize and demonstrate four basic algebra relations for better understanding with foam blocks. This set uses area and volume to represent terms that are the product of two and three quantities, respectively. The edge lengths of the bloc... More.