Book excerpt: It is cleanup time, and Daddy and his little one are putting away books, blocks, teddy bears, and train cars, washing hands, and preparing for dinner--all while having fun with math! As Daddy talks with his toddler, he uses spatial-relationship math words and phrases like up, down, inside, outside, next to, and under to reinforce his young learner's understanding. When it is dinnertime, the little one proudly demonstrates an understanding of down when helping to set the table and up while enjoying the first delicious bite!A playful story that models engaging conversations between parent and child, Clean Up, Up, Up! includes a note by early childhood education expert Susan C. Levine that shows parents and caregivers how everyday activities offer rich opportunities to teach early spatial math concepts.This book is based on work supported in part by TERC under a grant from the Heising-Simons Foundation.