Child Development, Through Play
An age-by-age guide to choosing the right toys for your child — backed by research, written for real parents.
Browse by Age
Select your child's age to find guides, milestones, and toy recommendations
12–24 Months
First Steps & First Words
Coming soon2–3 Years
The Builder & Pretender
Coming soon3–5 Years
The Social Creator
Coming soon6+ Years
The Independent Thinker
Coming soonLatest Articles
Research-backed guides on play and child development
Toddler Language Development 12-24 Months: First Words, Phrases, and Late Talkers
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Toddler Gross Motor Milestones 12-24 Months: Walking, Running, and Climbing
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18 Month Old Milestones: Your Toddler's Development from 12 to 24 Months
Yesterday they took their first wobbly step. Today they're running (sort of) toward the dog, yelling something that...
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Baby Cognitive Development 6-12 Months: Object Permanence and the Thinking Brain
You hide a toy under a blanket. Your baby stares at the blanket. Their hand reaches out, pulls...
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Baby Gross Motor Milestones 6-12 Months: Sitting, Crawling, and Standing
One day your baby is sitting with a pillow behind them "just in case." The next, they're army-crawling...
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6 Month Old Milestones and Beyond: Your Baby's Development from 6 to 12 Months
A few months ago, your baby couldn't sit up without a pillow fortress behind them. Now they're grabbing...
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Explore the key skills your child is building through play
About This Guide
Every recommendation in this guide is backed by research from the American Academy of Pediatrics, the CDC, and established child development science. We write for real parents — no jargon, no anxiety, just clear guidance on how play supports your child's growth and which toys actually help at each stage.