Developmental milestones are the things most children can do by a certain age. While all children develop differently, it helps to know if your child is meeting typical milestones and how you can support their healthy development. How your child plays, learns, speaks, acts and moves offers important clues about your child’s development.
Below are materials to help you understand what’s happening at different stages of your child’s life and how you can help them learn and grow.
More About the Stages of Child Development
- ZEROTOTHREE.org – the skills and behaviors you can expect from your baby at every stage from birth to 3
- HealthyChildren.org – more on developmental stages from the American Academy of Pediatrics
- PBS.org/parents – help your child learn and grow with age-by-age tips and activities
Pay attention to your child's development
The early years are important for parents to keep an eye on how their child is developing.
Arizona’s Infant and Toddler Developmental Guidelines
First Things First and other key partners in Arizona’s early childhood system developed this detailed resource to help parents, families and other caregivers understand the appropriate development of children from birth to age 3, and also what they can do to support children’s healthy development and learning.
Recognizing that all children progress differently, these guidelines describe expectations about what infants and toddlers should know (understand) and do (competencies and skills) across the full range of development:
- Social and emotional development, which includes trust, self-regulation, and relationships with other children
- Approaches to learning, which includes persistence, curiosity, creativity, and problem solving
- Language development and communication, which includes listening and understanding, speaking, and literacy
- Cognitive development, which includes exploration, memory, and play
- Physical and motor development
The guidelines also explain what adults can do to support children’s optimal learning and development. For example:
Download Arizona’s Infant and Toddler Developmental Guidelines