ctice Books are a great resource for teachers and parents to help children in Grades K?8 build their confidence, skill, and success in math. Created by award-winning mathematician and best-selling author Dr. John Mighton, the AP Books are informed by the latest research on how children learn. They are designed to support students with practicing and mastering math concepts being taught in class and are equally helpful for supporting math learning at home. These essential math resources are printed in two parts, which together cover the full school year. Answer keys for all grades are available at www.jumpmath.org.