Celebrate diversity, math, and the power of storytelling!

Tyson is the youngest-smaller than his four older brothers and always trying to keep up. But when the family's pet gerbil, Swish, goes missing, it's Tyson to the rescue! Tyson uses his knowledge of doubles, triples, and sizes to figure out a clever way to reach his beloved pet. A playful exploration of proportional thinking, featuring Black characters and an author letter about the ubiquitous nature of math.

The Storytelling Math series shows that all children can be mathematical thinkers. Each book includes ideas for exploring math at home with your children and was developed in collaboration with math experts at STEM education nonprofit TERC, under a grant from the Heising-Simons Foundation.