Recognized as the father of analytic geometry, Rene Descartes was aFrench mathematician and philosopher. Kids will love this funny and veryaccessible tale - based on one of math's greatest myths - about the man whopopularized the Cart...

On a beautiful summer day a young girl sets up a lemonade stand and sellsenough cups of refreshment to add up to a dollar. Told in rhyme, thisdelightful story combines the teaching of addition with a traditional rite ofchildhood entr...