"Kids, young and old, fall in love with math when they see how real-life and effortless it becomes thanks to these books." --Kimberly D. Mueller, Ed.D., First Grade Teacher, Ashbrook School, Lumberton NJ Jack the Builder is perfect for teaching counting on, a step toward mastering addition, to pre-K through kindergarteners. Jack stacks up blocks high. Two make a robot, five make a boat, and fifteen make . . . whatever you...