Fairies, butterflies and magic help to make this math-focused picture book from Danica McKellar, the New York Times bestselling author of "Goodnight, Numbers" and star of "The Wonder Years," positively enchanting! In this book, the actress, math whiz and author McKellar once again sneaks in secret math concepts to help make your child smarter and uses her proven math success to show children that loving numbers is as easy as a wave of a wand.