Joan Holub | National Math Festival

Joan Holub

Joan Holub has created over 150 children’s books including the New York Times bestselling picture book, Mighty Dads, and the popular Goddess Girls middle grade series. She says, “I hope my books are so interesting and entertaining that kids can almost see the action, like a movie playing in their heads.” Her title Zero the Hero is a Mathical Book Prize honor book.

2017 Festival

Zero the Hero: Mask Making Activity

Zoom into math fun, making Zero the Hero masks with picture book author Joan Holub (in costume)! Learn why the number Zero is a math superhero and enjoy a Zero the Hero mask-making activity and coloring sheets for kids! Zero the Hero is a Mathical Book Prize honor book.