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Promoting Early Development: Building a Strong Foundation

The first three years set the stage for lifelong success.

During the earliest months and years of life, the architecture of the brain is being built at an unparalleled rate in response to nurturing early experiences. Caring adults have a wonderful opportunity to foster feelings of trust and safety in babies, which helps toddlers establish a sense of self and become confident explorers.

Research shows that, to ensure a good start in life, all infants and toddlers need good health, strong families and positive early learning experiences.

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    Child development is greatly affected by the mental health of the adults who care for them.

    Developmental milestones

    Primary caregivers must be responsive, consistently meet their child’s needs and ensure they reach various developmental milestones at the right age. Here are the most critical milestones in infant development:

    • Speech and language development: These milestones include various forms of communication, from crying to constructing simple sentences.
    • Movement and physical development: Movement milestones from birth to three years old usually include rolling over, crawling, walking and running.
    • Cognitive development: Early childhood cognitive growth often consists of problem-solving and thinking, such as sorting shapes and following instructions.

    ZERO TO THREE's strategies

    Using evidence-based frameworks, we create resources for parents, professionals and policymakers to support early childhood development. Our team of experts raises awareness among parents and providers about the importance of early intervention services. 

    Here are some of our initiatives:

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    Science tells us that early experiences really do matter, and the connections that we have with the caregivers in our lives make a real difference in how we see and understand the world. ZERO TO THREE occupies a unique position in the early childhood landscape. In terms of giving voice to the needs of babies, we don’t leave any stone unturned. 

    Resources for parents and professionals

    Here are a few ways we equip parents, early childhood development professionals and policymakers with the latest research on early development science:

    Early Development in the Classroom

    Want to learn more about early brain development? We have trainings for that.

    The Growing Brain: From Birth to 5 Years Old curriculum, led by Katrina Macasaet, helps early childhood professionals explore the science of brain development.

    ZERO TO THREE's Baby Brain Map

    Our “Baby Brain Map” is designed to educate parents, caregivers, and early childhood professionals about the critical stages of brain development in young children from birth to three years old. 


    This tool provides an engaging, user-friendly way to explore how babies’ brains grow during these formative years, emphasizing the impact of experiences, relationships, and environmental factors on neural development. 

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    Be a Baby Champion

    Explore our science-based resources, attend events and advocate for policies that support early intervention and family engagement so we can ensure every child receives the strong start they deserve. Get involved today or explore our comprehensive resources for more.