Topic Sentences Worksheet

A free, printable topic sentences worksheet for 3rd and 4th grade. Your child sorts topic sentences and writes their own for sets of details. Answer key included.

Page 1 of the topic sentences worksheet: sort topic sentences as too broad, too narrow or just right and write topic sentences for sets of details

What's inside

  • Page 1: label 6 topic sentences, then write 2 for sets of details.
  • Page 2: rewrite a topic sentence with a hook.
  • Page 3: answer key.
Download the PDF (3 pages)

How to use it

  1. Teach or review the rule first with the topic sentences lesson. It takes about 10 minutes.
  2. Read the directions for each part out loud. Early readers can point while you read.
  3. Check Part A together before your child goes on, so any confusion gets fixed early.
  4. Use the answer key on the last page.

Prints on US Letter paper (8.5 × 11 in). No sign-up needed.

Tips for doing it together

What your child is practicing

A topic sentence states the main idea of a paragraph. Strong ones are not too broad and not too narrow, and they can start with a hook.

Practice online

After the worksheet, the 10-question topic sentences quiz gives instant feedback and reads each question aloud. For a game, try Syntax Skies.

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Practice with a game

Free, no sign-up, and they work on phones, tablets and computers.

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Last reviewed: November 11, 2026