About this item:
Algebra Balance
Unique balance helps students make sense of algebraic equations
Great for small-group work
Ideal for students in Grades 6 and up
 
Skill:
Unique balance lets you demonstrate that -1 < 0.
Weights placed on the outer pans represent negative integers, and those placed in the inner pans represent positive integers, making it possible to demonstrate that (-1) + (+1) = 0.
Includes 4 plastic pans, 4 plastic canisters, a set of plastic weights, and Activity Guide.
Some assembly required