With bedtime fast approaching, young Latinx scientist Marco wants to sort his stuffed animals into categories that will help them comfortably settle down. He observes, compares, and groups, but the animals refuse every classification. Finally Marco combines math with empathy to get the most important result: maximum snuggles.

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