Take one messy baby, two busy feet, three rambunctious friends, four wayward ducks, and five floaty bubbles--and get a tubful of fun as one family's bathtime routine turns into a nightly ritual they can "count on"! Actress, math whiz, and New York Times bestselling author Danica McKellar uses her proven math success to show children that math is all around us as she cleverly introduces the early addition concept of "counting on"--the idea that when we add 1, we can get the answer by simply counting on to the next number. This next book in the McKellar Math line shows that even washing your hair can be full of math fun!

Author Biography

Danica McKellar is the New York Times bestselling author of groundbreaking math books, including the picture books Goodnight, Numbers and Ten Magic Butterflies and the middle school hit Kiss My Math, and is a summa cum laude graduate of UCLA with a degree in mathematics. She is also well known for her acting roles on The Wonder Years, The West Wing, and multiple Hallmark Channel movies, and as a quarterfinalist on Dancing with the Stars. She lives with her family in Los Angeles. Find her on Facebook, Twitter, and Instagram (and more) at @danicamckellar, and visit McKellarMath.com. Alicia Padr n is known for her sweet characters and soft colors. She lives in Florida with her husband, two children, and dogs Lucy and Luna.