This deceptively simple bedtime book sneaks in secret counting concepts to help make your 2-5 year old smarter . . . and by the end, sleepier! The first in the McKellar Math line, Goodnight, Numbers gives your child the building blocks for math success. As children say goodnight to the objects all around them—three wheels on a tricycle, four legs on a cat—they will connect with the real numbers in their world while creating cuddly memories, night after night. Loving numbers is as easy as 1, 2, 3!