The Interrupters
Commas, parentheses, and dashes all do the same job — set off an aside the sentence could live without — at three different volumes: neutral, whisper, spotlight. An octopus-escape report uses all three deliberately; students run the removal test to find every aside, sort the volumes, punctuate fresh sentences at a chosen loudness, and harvest the report's academic vocabulary for their own writing.
Common Core standards covered
- L.6.2Demonstrate command of the conventions of standard English capitalization, punctuation, and spelling when writing.
- L.6.6Acquire and use accurately grade-appropriate general academic and domain-specific words and phrases; gather vocabulary knowledge when considering a word or phrase important to comprehension or expression.
© Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved.
Teacher-facing overview
Big idea: Demonstrate command of punctuation — commas, parentheses, and dashes — to set off nonrestrictive and parenthetical elements, and spell correctly; acquire and use accurately grade-appropriate general academic words, gathering vocabulary knowledge when considering a word important to comprehension or expression.
Student target: “I can find nonrestrictive elements with the removal test, set them off with commas, parentheses, or dashes at a deliberately chosen volume, and harvest and redeploy academic vocabulary.”
Success criteria: I can run the removal test and show the surviving sentence. · I can explain the three volumes and cite one example of each from the report. · I can punctuate a fresh sentence at a chosen volume and defend the choice. · I can use five harvested academic words accurately in my own sentences.
Essential question
Commas, parentheses, and dashes can all set off the same aside — so the choice isn't about rules, it's about volume. How do you find an interrupter with the removal test, and how do you choose how loud it should be?
Learning target: I can find nonrestrictive elements with the removal test, set them off with commas, parentheses, or dashes at a deliberately chosen volume, and harvest and redeploy academic vocabulary.
Success criteria
- I can run the removal test and show the surviving sentence.
- I can explain the three volumes and cite one example of each from the report.
- I can punctuate a fresh sentence at a chosen volume and defend the choice.
- I can use five harvested academic words accurately in my own sentences.
Why this matters
L.6.2's named clause — commas, parentheses, dashes for nonrestrictive elements — is usually taught as three separate rules, which is why students never feel licensed to use dashes at all. The reframe that unlocks it: one job, three volumes. The removal test makes the grammar mechanical (liftable chunk, surviving sentence), and the volume choice makes it rhetorical — suddenly punctuation is a writer's decision, not a minefield. The octopus report gives the practice a text worth reading twice, and its restrictive trap ('weighing over one hundred pounds') inoculates against the overcorrection of comma-ing every clause. L.6.6 rides naturally: informational prose is where general academic vocabulary lives, and the harvest-and-redeploy cycle — meet the word in context, then make it work in your sentence — is how those words actually transfer to student writing.
Students should already be able to
- Basic comma experience (lists, dates) — the nonrestrictive use is taught fresh today.
- The pronoun museum's 'which/who' attention transfers directly to clause-spotting.
- No prior parenthesis/dash instruction assumed — most students have never been licensed to use a dash.
Where this shows up outside the classroom
Assessment plan
Formative — for feedback during the lesson
- Warm-up — the three volumes performed chorally.
- The sort — survivors recorded, volumes defended.
- Fresh-sentence circulation — paired marks enforced.
Summative — the graded evidence: Exit ticket (two volumes + two words) plus the both-standards sentence and the harvest sheet; the volume translation and interrupter census rank as extension evidence.
The passage: “The Octopus Report”
An original informational text written for this lesson. The octopus facts — the lemon-sized squeeze, jar lids from the inside, Inky's drainpipe escape in New Zealand — are real.
¶1 The giant Pacific octopus, the largest octopus species on Earth, is a master of escape. Aquarium keepers, who spend their careers building secure tanks, tell a consistent story: if there is a gap, the octopus will find it. An adult weighing over one hundred pounds can compress its entire body — it has no bones, only a hard beak — through an opening approximately the size of a lemon.
¶2 The evidence for octopus intelligence goes beyond escape. In laboratory studies, octopuses have learned to unscrew jar lids (some from the inside), to distinguish individual human keepers, and to solve mazes. One aquarium octopus, a female named Luna, was observed dismantling a supposedly octopus-proof latch in under an hour. Researchers who analyze this behavior emphasize a significant contrast: unlike most intelligent animals, the octopus is a loner. It develops its problem-solving abilities without a family, without a teacher — without, in fact, ever meeting its own parents.
🔒 The full text — 4 numbered paragraphs, plus the photocopy-ready handout — ships in the kit. See plans →
The task students work on
The class reads the report, hunts interrupters with the removal test, and sorts them into the three-volume table with the surviving sentence recorded as proof. Fresh-sentence practice follows: bare sentences plus an aside, where students choose the volume and defend it (most defensible choices pass — the defense is the skill). The academic harvest closes the hour: ten words gathered, five redeployed in sentences about anything but octopuses, proving portability. The restrictive trap is the extension tier.
The volume-sort table — every interrupter, its volume, and the removal-test proof.
| The interrupter (quote + ¶) | Volume (comma / parentheses / dash) | The surviving sentence (removal-test proof) | Why this volume? |
|---|---|---|---|
Anticipated student strategies
Test-first is the floor. Volume-blindness upgraded by the swap question. The restrictive stumble staged deliberately in the extension so the rule earns its boundary.
- Test-first hunting. The student lifts chunks and checks the survivor before classifying.
The intended mechanics — protect the order: removal proof first, volume judgment second.
🔒 2 more anticipated strategies with select-and-sequence guidance are in the full lesson. See plans →
Lesson script
Perform all three; have the room perform them back chorally (it's fun and it installs the concept in the ear, where punctuation actually lives). Name the day's claim: three marks, ONE job — setting off a chunk the sentence could live without — at three volumes. Tease the text: a report about animals that unscrew jars from the inside and escape through drains.
Listen for: The dashes (spotlight) or the parentheses (conspiratorial whisper) — either defense works; the point is the choice CHANGED the effect, which means punctuation is a decision.
Model the first two: 'the largest octopus species on Earth' lifts clean (survivor: 'The giant Pacific octopus is a master of escape') — commas, neutral; the beak dash-pair lifts clean and was SHOUTED — why? (It's the fact the whole escape ability depends on.) Then the room hunts and sorts; the table needs five-plus with survivors recorded. Mid-hunt, pose the swap question to fix volume-blindness: whisper the no-parents fact and shout the jar detail — feel what breaks. The writer RANKED the asides; volume is that ranking, published.
- Survivor sentences written, not just claimed.
- Five-plus interrupters sorted across all three volumes.
- The swap question: volumes are rankings.
Listen for: The main clause ('a young octopus must acquire every skill through direct experimentation') is the paragraph's actual point; parentheses keep the long side-fact from hijacking it. Whispers protect the sentence's momentum.
🔒 The remaining 4 steps — fully scripted with teacher-says lines, discourse questions, look-fors, and interventions — are in the full lesson. See plans →
Misconceptions and how to respond
- “Dashes are informal — teachers don't want them in real writing.” The report is formal informational prose and uses dashes four times, each deliberately. Dashes are fully standard; what's informal is using them for EVERYTHING. One spotlight per paragraph, aimed at your best fact, is professional-grade punctuation.
- “Parentheses mean the information doesn't matter.” — the teacher response is in the full lesson.
- “Any clause starting with 'who' or 'which' gets commas.” — the teacher response is in the full lesson.
- “One comma is enough to set off an interrupter.” — the teacher response is in the full lesson.
🔒 Every misconception ships with a tested classroom response. See plans →
Scaffolded practice
The workbook follows gradual release rather than a page of blank prompts: 2 fully worked, 2 partially completed, then 4 independent.
- I doLiteral first — the removal test. Prove '(which hatches with thousands of siblings and immediately drifts away from all of them)' (¶3) is a true interrupter.
🔒 7 more prompts across all three release tiers are in the full lesson. See plans →
Worked solutions and scaffolds for every prompt are in the downloadable kit, included with membership. See plans and pricing.
Exit ticket
- Punctuate as a whisper: 'The janitor [he has a key to everything] waved us through.'
🔒 2 more exit-ticket questions are in the full lesson. See plans →
Worked answers, the completed answer tables, and the scoring rubric are in the downloadable kit, included with membership. See plans and pricing.
Printable handouts in the kit
All handouts are in Printable_Handouts.pdf inside the kit download.
Materials and classroom resources
Student experience
Students enter through a low-floor prompt, build or sketch a model, test a strategy, revise their thinking, collaborate, and present a final solution. The task remains accessible while allowing for sophisticated reasoning.
Detailed facilitation notes
- Step 1: Read the report; run the removal test to find every aside. Ask: “What do you notice?”, “What could you try next?”, and “How can you prove that?”
- Step 2: Sort the asides by volume: commas (neutral), parentheses (whisper), dashes (spotlight). Ask: “What do you notice?”, “What could you try next?”, and “How can you prove that?”
- Step 3: Punctuate fresh sentences — choosing and defending a volume. Ask: “What do you notice?”, “What could you try next?”, and “How can you prove that?”
- Step 4: Harvest the academic vocabulary; redeploy five words in your own sentences. Ask: “What do you notice?”, “What could you try next?”, and “How can you prove that?”
Differentiation and inclusion
Support: The removal test is mechanical enough for all learners; strivers sort pre-marked asides. Extenders take the restrictive trap — the one 'who' clause in the report that CAN'T be removed — and the volume-rewrite challenge.
Language support: “I started by…”, “My model shows…”, and “I know my answer is reasonable because…”.
Extension: Require a second solution, alter a condition, or have students write a challenge for another group.
Accessibility: Manipulatives, enlarged visuals, oral response choices, partner reading, and reduced-copy student pages.
Assessment plan
Formative checks: Strategy choice, accuracy, representation, collaboration, and explanation.
End evidence: The volume-sort table with removal-test proof, four fresh sentences punctuated with defended choices, and five harvested words redeployed accurately.
Mastery: The student completes the task accurately and explains the strategy with limited prompting.