3rd grade possessive nouns worksheets
Third graders handle both ends of the rule: singular owners take apostrophe-s (the fox's den) and plural owners ending in s take just the apostrophe (the players' jerseys). Irregular plurals like children behave like singulars: children's.
Free printable PDF worksheet, aligned to Common Core L.3.2.d.
A new sheet every click.
The kind of sentences you'll get
Circle the letter of the correctly written owner.
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The den sat under the fallen log.
fox’s · foxes’s · foxs
Answer: fox’s
- The bark felt rough under my hand. trees · tree’s · trees’s
- The peak hid behind clouds. mountains · mountains’s · mountain’s
Every print pulls a fresh set of sentences at this level, so a make-up test or a second sibling never gets the same sheet.
What's on each sheet
- Choose the word. Circle the letter of the correctly written owner. 10 questions per page.
Every version prints on US Letter or A4, with its answer key on the last page.
How to teach this
Teach the s-apostrophe flip as a two-question routine: who owns it, and does that word already end in s? One owner: add 's. Owners ending in s: add just the apostrophe. Then spring the irregulars (children's, men's, mice's) and let students discover they follow the first rule.
Watch for: The apostrophe never makes a plain plural: three dogs, no apostrophe; the dog's bone, apostrophe for owning. Irregular plurals act like singulars: the children's coats, the men's choir.
Common questions about possessive nouns
- Where does the apostrophe go for plural owners?
- After the s that's already there: the players' bench, the twins' room. The word did its plural work first, then the apostrophe claims ownership. One owner, apostrophe before the s; many owners ending in s, apostrophe after.
- What about children and other irregular plurals?
- They take apostrophe-s just like singulars: children's coats, men's choir, mice's tracks. Since the plural doesn't end in s, there's no s to put the apostrophe after. Kids find this easier than adults expect once it's stated plainly.
Related worksheets
- 2nd grade possessive nouns A step easier, same skill
- 4th grade possessive nouns A step harder, same skill
- 3rd grade adverbs of how, when, and where Same grade, nearby skill
- 3rd grade articles (a, an, the) Same grade, nearby skill
- 3rd grade collective nouns Same grade, nearby skill
- Possessive nouns, all grades The full progression
- All 3rd grade English worksheets Every skill at this level
- All 3rd grade worksheets Everything at this level
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Aligned to Common Core L.3.2.d. Reviewed by the One more sheet team. Content version 137, updated August 2026.
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