Just as athletes stretch their muscles before every game and musicians play scales to keep their technique in tune, mathematical thinkers and problem solvers ca
How do we love numbers? Let us count the ways: They're on street signs and bus stops, featured on phones, thermometers, chalkboards, and scales. They show the t
Counting is as easy as 1... 2... purple?... in this charming book of numbers from the creators of the #1 New York Times Best Sellers, The Day the Crayons Quit a