Much more than finding x, algebra forms the basis to describe any process that has variation. Everyday numbers like money and time are common variables. In this

Focusing on geometry, this is one of a series exploring issues of interest to children in Africa, and designed to introduce students to reading non-fiction for

The fundamental shapes of geometry can be built into the grand sweeps of the Sydney Opera House or something as small as a snowflake. This title takes geometric

An instant New York Times Bestseller! “Unreasonably entertaining . . . reveals how geometric thinking can allow for everything from fairer American elections

An interactive guide to shapes for 5 to 8 year olds, this bright and bold lift-the-flap activity book helps children understand the properties of 2-D and 3-D sh