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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, aligned to Common Core L.3.2.d. One skill per page, answer key on page two.

Every sheet is one of a kind and prints with a version code, so you can reprint the exact same one later. New version every click.

A sample 3rd grade sheet. Yours will have different sentences. Click it to print your own.

The kind of sentences you'll get

Circle the letter of the correctly written owner.

  1. The ______ share a bunk bed. twins · twin's · twins'

    Answer: twins

  2. The ______ cart squeaks down the hall. librarians · librarians's · librarian's
  3. The ______ choice award went to the puppet show. peoples' · peoples · people's

Every print draws a fresh mix of sentences at this level, so a make-up test or a second sibling gets a different sheet.

What's on each sheet

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

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Aligned to Common Core L.3.2.d. Reviewed by the One More Sheet curriculum team. Content version 68, updated July 2026.