URMC / Encyclopedia / Collection Growth and Development Normal Growth Understanding the Teen Brain The Growing Child: 1 to 3 Months The Growing Child: 10 to 12 Months The Growing Child: 1-Year-Olds The Growing Child: 2-Year-Olds The Growing Child: 3-Year-Olds The Growing Child: 4 to 6 Months The Growing Child: 7 to 9 Months The Growing Child- Teenager (13 to 18 Years) The Growing Child: Newborn The Growing Child: Preschool (4 to 5 Years) The Growing Child: School-Age (6 to 12 Years)