Break out the scissors, tape, paste and paper and make a stomach book, 3-D skeleton, a growing-tooth "movie," a cardboard spinal column, manipulative eye, and more! The book begins with a study of the sense organs: tongue, eye, ear, nose, and skin. Building models of each helps children understand how they work. The rest of the book is on body systems: skeletal, digestive, respiratory, circulatory, excretory, and muscular. Building models of the systems and some of their components after discussing them and performing some illustrative activities provides for active learning. Model patterns used are reproducible, so everyone can join in.