Little Actions. Big Impact!

All the tools you need to help your child learn and grow

from PA Promise in partnership with OCDEL

Infant boy on belly

Developmental Milestones Checklist: What changes should you expect as your child grows?


This checklist compiled by Pennsylvania's Early Intervention Services provides a checklist of skills for each developmental stage from birth to five years.

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How does a child's brain develop?

Zero to Three: National Center for Infants, Toddlers and Families

A child’s brain develops so rapidly in their first years, it’s almost impossible for us to imagine. By age five, about 90 percent of our brains are developed. This site offers articles and videos about frequently asked questions and ways to nurture development.

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Explaining the science behind a child's brain development

Harvard University Center on the Developing Child

A collection of articles, videos, interactive tools and printable guides about the science behind brain development in young children. Resources are offered in English, Spanish and Portuguese.

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What is a developmental delay?

Center for Parent Information and Resources, U.S. Department of Education, Office of Special Education Programs

This fact sheet walks through the definition of a developmental delay, offers "things to know" about the support system available and links to additional resources.

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What is typical for language and speech development?

American Speech-Language-Hearing Association

This resource provides not only charts of developmental milestones specific to speech and language, but also information about reading and writing development, early detection of disorders, and what to expect if teaching your child more than one language.

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Berks County Baby University

Reading & Berks YMCA

Offering parenting classes for parents of children birth-5 years old. The Y-Haven provides assistance for homeless mothers with one child to help them get back on their feet.

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I Am Two

This one-page printable graphic from PA's Promise for Children helps remind families and teachers that each child learns skills at his or her own pace.

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Potty Training Tips

How do you know if your child is ready for potty training? Get these tips from PA's Promise for Children to help your child make the transition from diapers to the potty.

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Concerned about your child’s development?

Call Pennsylvania’s CONNECT Helpline at 1-800-692-7288 for information about your child’s development and connecting to Early Intervention services in Pennsylvania.

Call Child Care Works Helpline at 1-877-4-PA-KIDS (1-877-472-5437) for information about finding, paying for and other concerns related to child care.

Learn more about these Helplines