This document outlines the key stages of child development from infancy through adolescence. It discusses development in three domains: physical, cognitive, and psychosocial. For each stage, it provides an overview of the typical physical growth and motor skills, cognitive abilities like language development and thought processes, and psychosocial milestones regarding personality, relationships, and independence. The stages covered are infancy, early childhood (ages 2-6), middle childhood (ages 7-11), and adolescence (ages 10-18).