Child Development Level A: Building A Bright Beginning"Infants and Toddlers, Birth to Age 3." This activity guide, for youths in Grades 3 and 4, contains five chapters and 13 activities about infant and toddler development. This is the first of four books in the Child Development curriculum series. Other books in this series include: Child Development Level B: Building Blocks of Learning Child Development Level C: Building a Strong Foundation Child Development Level D: Building Relationships Toward a