Family math for young children: Comparing (ENC-010948) This book, designed for parents with children in grades pre K to 3, explores the theme of comparing as applied to numbers and measurements. The book uses games, activities, and explorations that integrate logical reasoning, measurement, geometry, and spatial thinking as well as probability, estimation, arithmetic, and other important mathematical skills. Fun and common household objects, such as toys, beans, and coins, may be used to explore shapes and geometry, estimate numbers and sizes, completeactivities and play games, work and talk with others, and connect math and real life.