
By Jenny Lacika, Teresa Martinez (Illustrator)
Part of the Storytelling Math series
Can Rafael's wall keep his sister out, or does she have other plans?
Rafael is determined to protect his toys from his curious sister, Essie. Using materials from around the house, he constructs a wall, but will it withstand her determination? As Rafael navigates this playful challenge, he explores geometry and space, discovering that Essie's intentions might not be what they seem. This story invites young readers to join Rafael in a math-filled adventure, celebrating diversity and the joy of learning through everyday play. Will Rafael's wall hold, or will Essie surprise him with her true motives?
Celebrate diversity, math, and the power of storytelling! Rafael wants to protect his toys from his little sister, Essie. Gathering materials from around the house, he builds a wall tall enough and wide enough to keep her out. But will it be strong enough? And what does Essie really want? A playful exploration of physical space and geometry, featuring Chicanx (Mexican American) characters and a glossary of Spanish 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.
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