Your Child’s Development: Age-Based Tips From Birth to 36 Months

This set of age-based resources include a “what to expect” chart for each age range, frequently asked questions, a research summary, and information about common parenting challenges for each age and stage.

Browse articles for each age group below. These handouts are also available in Spanish.

This set of age-based resources include:

  • A chart that helps you know what to expect developmentally from your child and how you can help your child learn at each stage
  • Frequently asked questions and answers
  • A spotlight section that goes into greater depth on a common issue or challenge for each age
  • A research summary specific to each stage of development, and what it means for parents

Birth to 12 Months

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Baby being held

Birth to 3 Months: Your Baby’s Development

The first three months are all about babies learning to feel comfortable, safe, and secure in the world. Read more about milestones and development in the first three months.
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Father and baby

Baby To Big Kid 0–12 Months

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Dad playing with baby on back

3–6 Months: Your Baby’s Development

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a baby crawling with parents smiling

6–9 Months: Your Baby’s Development

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9–12 Months: Your Baby’s Development

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Mother gazing at baby

Supporting Thinking Skills From 0-12 Months

Babies are beginning to make sense of the world. Learn how you can support your baby’s thinking skills from 0-12 months.
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A mother holds her child and boops them on the nose.

Birth to 12 Months: Social-Emotional Development

Starting from birth, babies are learning who they are by how they are treated. Learn more about babies' social and emotional development.
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12-24 Months

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Mother looking at toddler who is playing peek-a-boo

18–24 Months: Your Child’s Development

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A mother shows a picture book to her toddler.

Supporting Brain Development From 18 to 24 Months

From 18 to 24 months, babies are developing language skills, thinking skills, learning how to move, and developing socially and emotionally.
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Father clapping while daughter walks

12–15 Months: Your Child’s Development

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Supporting Brain Development From 12 to 18 Months

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15–18 Months: Your Child’s Development

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24-26 Months

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toddlers reading books together antiracist parenting

24–30 Months: Your Child’s Development

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Father looking at toddler dresses as ballerina

30–36 Months: Your Child’s Development

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Supporting Brain Development From 24 to 36 Months

From 24 to 36 months, toddlers are developing language skills, thinking skills, learning how to move, and developing socially and emotionally.
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Learning Self Control: 24 to 36 Months

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A little girls holds a stuffed toy and looks at mom.

Developing Thinking Skills From 24 to 36 Months

Find strategies for developing thinking skills from 24 to 36 months - an amazing time when a toddler’s personality continues to grow.
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