From 1 to 10, these "lessons that count" are math magic for learning addition and subtraction. Greg Tang has built his career as an author and math missionary o

For children who have graduated from MATH FABLES, MATH FABLES TOO will help kids learn to count and, more important, lay the groundwork for addition. When child

In this introduction to polygons, a triangle convinces a shapeshifter to make him a quadrilateral and later a pentagon, but discovers that where angles and side

Barbara Lipke demonstrates what a powerful tool storytelling can be in elementary and middle school science and math instruction.

NEW YORK TIMES BESTSELLER • Count your way to sweet dreams with help from The Wonder Years/Great American Family star, math whiz, and author Danica McKellar!