McKellar Math Picture Books Books in Order

The McKellar Math Picture Books by Danica McKellar — the actress and mathematics advocate known for her role in The Wonder Years and her bestselling math education books for older students — bring the same mission of making mathematics accessible and engaging to the earliest learners. Each book in the series introduces a specific mathematical concept through narrative storytelling designed for children aged two through six.

Goodnight, Numbers is an award-winning bedtime counting book that has become a beloved classic of early childhood mathematics education. Ten Magic Butterflies introduces addition through story, and Double Puppy Trouble uses dogs to explore the concept of doubles and place value. McKellar's background as both a serious mathematician (she co-authored a published mathematical theorem while at UCLA) and a skilled communicator gives the books their particular combination of mathematical rigor and child-accessible warmth.

The picture books are perfect companions to McKellar's middle and high school math education series, creating a complete arc of mathematics-positive literature from toddlerhood through high school.