Comma Rules: Coordinate Adjectives
- Grade band
- 7
- Duration
- 40 minutes
- Skill
- Commas with coordinate adjectives
- Standards
- L.7.2a — Use a comma to separate coordinate adjectives (e.g., It was a fascinating, enjoyable movie but not He wore an old[,] green shirt).
- Materials
- Student worksheet (printable, included)
- Pencils
Learning objectives
- Students will be able to identify coordinate adjectives in a sentence.
- Students will be able to apply the "and" test and the swap test to decide whether a comma is needed.
- Students will be able to correctly punctuate sentences containing coordinate and non-coordinate adjectives.
Lesson procedure
- Warm-up (5 minutes) — I Do. Write "a fascinating enjoyable movie" and "an old green shirt" on the board. Try inserting "and" in both. Ask which one still sounds natural (the first) and why that might matter for commas.
- Two tests (10 minutes) — We Do. Introduce the "and" test and the swap test explicitly. Apply both to three or four board examples as a class.
- Worksheet practice (17 minutes) — You Do. Students complete the worksheet, applying both tests to decide whether each sentence needs a comma between adjectives, then punctuating correctly.
- Partner check (8 minutes) — You Do. Partners compare answers and talk through any disagreements using the tests, not just instinct.
- Share-out (5 minutes) — Closure. Go over any commonly missed sentences as a class.
Printable worksheet
Part 1: Test it. For each pair of adjectives, write whether the "and" test sounds natural (yes/no), then decide if a comma is needed.
1. tall confident (speaker) "and" test: _____ Comma needed: _____
2. small red (car) "and" test: _____ Comma needed: _____
3. exciting unpredictable (game) "and" test: _____ Comma needed: _____
4. old wooden (table) "and" test: _____ Comma needed: _____
Part 2: Punctuate the sentences. Add a comma where needed. Some sentences need none.
1. It was a long tiring day at school.
2. She wore a bright yellow raincoat.
3. He gave a clear thoughtful answer.
4. We saw three large brown bears at the zoo.
Try it on your smartboard
Sort each adjective pair into Needs a comma or No comma — works with touch, a stylus, or a mouse. Reload the page to reset.
Needs a comma
No comma
Background for the teacher
Coordinate adjectives each modify the noun independently and equally, and need a comma between them ("a fascinating, enjoyable movie" — it's fascinating AND it's enjoyable). Non-coordinate adjectives build on each other in a fixed order and don't take a comma ("an old green shirt" — you wouldn't say "a green old shirt"). Seventh graders already have strong intuition for which order sounds right; this lesson gives that intuition a name and a reliable test.
Two tests catch almost every case: insert "and" between the adjectives (does it still sound natural? "fascinating and enjoyable movie" — yes, comma needed) or swap their order ("enjoyable, fascinating movie" — still sounds fine, comma needed). For non-coordinate adjectives, both tests fail ("green and old shirt" and "green old shirt" both sound off), which is the signal to skip the comma.
Differentiation
Support: Provide the "and" test and swap test as a printed two-step flowchart students can follow for each item, rather than applying both tests from memory.
Extension: Challenge students to find three examples of coordinate or non-coordinate adjective pairs in a book they're reading and check the author's punctuation against the tests.
ELL support: Have students say each version out loud (with "and," swapped, and as written) rather than judging silently — the "sounds right" test depends on ear more than rule, and reading aloud gives every student the same input.
IEP/504 support: Reduce Part 1 to two adjective pairs, and let students apply just the "and" test rather than both tests if the swap test proves confusing.
Answer key (for teachers)
Part 1 — Test it. 1. tall confident: yes, comma needed. 2. small red: no, no comma. 3. exciting unpredictable: yes, comma needed. 4. old wooden: no, no comma.
Part 2 — Punctuate. 1. "It was a long, tiring day at school." 2. "She wore a bright yellow raincoat." (no comma — bright yellow acts as one color) 3. "He gave a clear, thoughtful answer." 4. "We saw three large brown bears at the zoo." (no comma — cumulative adjectives)
Digital extension (optional)
To keep exploring adjective choice, try a fill-in-the-blank story in Giggle Gaps, where descriptive-word blanks are labeled clearly throughout the story.