URMC / Encyclopedia / Content Search Encyclopedia Topic Index The Growing Child Health Maintenance Play Dental Health Sleep Television and Children Healthy Lifestyles Discipline Immunizations Nutrition Hearing, Speech, and Language Vision Health Promotion and Common Problems Infant Toddler Preschool (4 to 5 Years) School-Age (6 to 12 Years) Adolescent (13 to 18 Years) Understanding your child's changing and emerging growth and development is an important part of parenting. Click on the links above to learn more about these topics.