How does play help a young child's brain development?
Play builds the brain by giving children rich experiences, conversation and problem-solving. Responsive 'serve and return' interactions, where an adult responds to a child's babble, gestures or questions, strengthen neural connections. Play also develops executive function skills (working memory, flexible thinking and self-control) that support later learning.
What this means in practice
Harvard's Center on the Developing Child explains that early experiences shape brain architecture, and play is one of the best ways to provide those experiences.
How play builds skills
- Pretend play: language, imagination and self-control
- Building: planning and problem-solving
- Games with rules: memory and turn-taking
- Physical play: coordination and health
The teacher's role
Join in, ask open questions, extend ideas and give time for uninterrupted play.
Practical serve-and-return in class
When a child points at a bird, the 'serve' is the point; your 'return' is to look, name it and ask a question: 'Yes, a crow! Where do you think it's flying?' Then wait for the child's answer and respond again. These back-and-forth exchanges, repeated many times a day, build language and thinking. Busy teachers can build them into routines such as snack time, arrival and outdoor play.
Practical next steps
- Plan daily free play.
- Practise serve-and-return conversations.
- Include games that need memory and rules.
Common follow-up questions
What is serve and return?
Back-and-forth responsive interaction between a child and an adult.
Is free play wasted time?
No; it builds key thinking and social skills.
Sources
- Harvard Center on the Developing Child: Serve and return
- Harvard Center on the Developing Child: Executive function
- UNICEF: Learning through play
Course facts from APTTI's published course pages, checked 10 October 2026. Editorial policy.
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