Twins Lia and Luís argue over who has more of their favorite snacks. Can the siblings use math--and a little sharing--to pick the winner? A playful exploration of measurement, counting, and estimation, featuring Brazilian American characters and a glossary of Brazilian Portuguese words.

Storytelling Math celebrates children using math in their daily adventures as they play, build, and discover the world around them. Joyful stories and hands-on activities make it easy for kids and their grown-ups to explore everyday math together. Developed in collaboration with math experts at STEM education nonprofit TERC, under a grant from the Heising-Simons Foundation.