Caldecott Honor winner Grace Lin celebrates math for every kid, everywhere Take a trip to the farmers' market in this playful story about spatial sense. Olivia is searching for something just the right size to fill her basket. The apple is so small that it rolls around. The zucchini is so long that it sticks out. What will fit just right? 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 non-profit TERC, under a grant from the Heising-Simons Foundation.