Ages and Stages

All children are unique. Celebrating, nurturing, and supporting developmental milestones from birth to 3 years is one of the joys of parenting.

Learn about the skills and behaviors you can expect from your baby at every stage from birth to 3 and discover new ways of supporting this exciting growth and development. Subscribe to ZERO TO THREE’s monthly e-newsletter, which delivers research, parenting tips and tricks, and fun playtime activities right to your inbox each month.

Learn how to nurture your baby from birth, teach them how to feel safe and secure in the world and encourage developmentally appropriate growth.


Explore additional resources on Ages and Stages.