Friends, privacy and the start of puberty
Friends carry more weight, privacy starts to matter, and puberty may begin. According to the AAP, children this age still want their parents to talk with them about tough subjects.
← All stages
General information, not medical advice. Every child develops at their own pace, and a web page can’t assess an individual child. If you have questions about how your child is growing, learning, feeling or behaving, talk to your child’s pediatrician.
What many children do at this age
Children this age vary a lot, especially when puberty starts. These are points from the AAP’s checkup checklists.
9 years
- Building independence
- Better at understanding other people’s feelings
- Friendships matter more
- Puberty may begin. The AAP gives about ages 8 to 11 for girls and 11 to 14 for boys
10 years
- May crave privacy
- More independence, and peers gain influence, which is normal
- Competition can bring envy, performance anxiety and perfectionism, especially with social media
11 years
- The brain is about 95% of adult size, so reasoning gets more logical and reading social cues gets easier
- Start forming their own sense of right and wrong
- Bodies change quickly, and some children worry about how they look
- Friend groups matter, and social media can amplify pressure
Source: AAP, HealthyChildren.org, Your Checkup Checklist for 9, 10 and 11 years old. Paraphrased.
Keep talking, and keep it safe
The AAP’s page for 10-year-olds suggests talking openly about tough subjects and offering a ride home with no judgment if your child ever feels uncomfortable somewhere. The page for 11-year-olds adds that kids still benefit from their parents’ input “even when they seem tuned out.”
It also says doctors ask about sleep, about whether children get at least one hour of exercise a day, and about screen time, and it recommends clear rules for digital media and an open conversation about safe choices.
If your child seems unusually sad or nervous, or is not sleeping well, the AAP’s page for 9-year-olds suggests raising it with your pediatrician.
Ask “why” and “how,” not only “is it right?” The IES practice guide rates asking deep explanatory questions as strong evidence.
Questions that open things up
The same 2007 IES practice guide has a recommendation that reads “Ask deep explanatory questions.” It is rated as strong evidence, and like the rest of the guide it is written for school subjects. It does not say that any home activity works.
Our reading for home: when your child shows you something they made, solved or read, ask about the reasoning. In our own wording:
- “Why do you think that works?”
- “How did you figure that out?”
- “What would you change next time?”
Books for independence, interests and growing up
We describe kinds of books, not titles, because titles come and go. Where a CDC or AAP page supports the idea, we say so. The rest is our own reading. Before you buy anything, our ten questions apply at every age.
Longer chapter books and series
Books they can read alone and choose themselves.
Why: Our reading. The AAP describes 9-year-olds as building independence.
Non-fiction that explains how and why
Science, history and how things work, with reasons and not only facts.
Why: “Ask deep explanatory questions” is an IES recommendation (strong evidence). Choosing books that do it is our reading.
Books that explain puberty for their age
Preview it first, and offer to read it together if your child wants.
Why: The AAP says puberty may begin at this age, and that some 11-year-olds worry about how they look. Previewing is our reading.
Stories about friends, groups and fitting in
Fiction about friendships, fairness and pressure from peers.
Why: The AAP says peers gain influence at 10 and that friend groups matter at 11.
Journals and notebooks that are theirs
A place for private writing and drawing.
Why: The AAP says 10-year-olds may crave privacy. Suggesting a journal is our reading.
Drawing, craft and hobby books with open outcomes
Books that invite making something without grading it.
Why: The AAP says competition can bring performance anxiety and perfectionism at 10. Choosing books that don’t grade is our reading.
Sources
- American Academy of Pediatrics, HealthyChildren.org. Your Checkup Checklist for 9, 10 and 11 years old.
- Pashler, H., Bain, P. M., Bottge, B. A., Graesser, A., Koedinger, K., McDaniel, M., & Metcalfe, J. (2007). Organizing instruction and study to improve student learning. Institute of Education Sciences, What Works Clearinghouse. ies.ed.gov
If you are worried about your child, talk to your child’s pediatrician. Our page For every age lists when to seek support. Links go to the original pages. Naming an organization or a study here does not mean it has reviewed or endorsed this guide or any Aurora Minds product. Last updated: October 2026.
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