Polygons

by Marina Cohen

Published 1 August 2010
Polygons are shapes with a number of sides joined together. They are everywhere! A baseball field is a diamond-shaped polygon. Join Emily at a baseball game and look for different shapes. She discovers that the field is full of much more than baseball players—it’s filled with polygons, too.

3-D Shapes

by Marina Cohen

Published 1 August 2010

Money Problems

by Marina Cohen

Published 1 August 2010

Probability

by Marina Cohen

Published 15 January 2010
Ella is trying to decide who to invite over to play. This fun book helps teach children how likely it is that a certain result will happen. Simple activities performed by Ella include flipping a coin, rolling a number cube, and playing a game with a spinning wheel.