An Opinion Organized Into Reasons
A 40-minute Grade 3 lesson on writing an opinion piece with an organized structure, reasons and linking words.
An Opinion Organized Into Reasons is a free 40-minute Grade 3 English lesson plan for Common Core standard W.3.1 — write an opinion piece with an introduction, ordered reasons and a conclusion. It is timed across 5 sections, gives the exact wording to use where the wording carries the meaning, names 3 misconceptions with the teaching move that addresses each, and ends with an exit ticket and a printable worksheet with its answer key.
- Grade:
- Grade 3
- Length:
- 40 minutes
- Standard:
- W.3.1
Grade 3 · Writing
W.3.1
Write opinion pieces on topics or texts, supporting a point of view with reasons.
Objective
Students will be able to write an opinion piece that states an opinion, gives three different reasons ordered so the strongest comes last, links each reason with a linking word, and ends with a conclusion that names the reasons.
Students are successful when they can
- The first sentence states the opinion in a full sentence, e.g. "Our school should have a longer lunch break."
- Three reasons that are genuinely different, each opening a paragraph with a linking word such as "First of all," "Another reason" or "Most importantly."
- Can say aloud why the last reason is the strongest, naming the reader it would convince.
- The conclusion names all three reasons in one sentence rather than repeating the opening word for word.
What you need
- Linking word cards: because, since, therefore, for example, another reason, most importantly, in conclusion
- A planning grid with an opinion box, three numbered reason boxes and a conclusion box
- Strips of paper for cutting reasons apart and re-ordering them
- The printable practice sheet linked at the end of this plan
The lesson
Warm-up — which reason wins?
5 min- Write on the board: "Opinion: Our class should visit the zoo for our trip." Underneath, write three reasons: A "The zoo has a picnic area." B "It is only ten minutes from school." C "We are learning about animal habitats in science, and we could see real ones."
- Ask: "Our principal decides where we go. Which reason would convince her most?" Take three answers with a reason each.
- Fish for C: it connects the trip to learning, which is what a principal cares about. A picnic area matters to us, not to her. Write "strongest = the one that convinces THIS reader" on the board.
- Then ask: "If you only had the reader's attention for one moment, the very end, which reason would you want them to remember?" Leave the question open; the Teach section answers it.
“A reason is only strong if it is strong for the person reading. Before you rank your reasons, ask yourself who has to be convinced.”
Teach — order is part of the argument
13 min- Write the opinion on the board: "Our school should have a longer lunch break." Then the three reasons as notes: "finish our food," "play proper games," "come back calm and ready to learn."
- Rank them aloud. Say: "Who decides lunch? The principal and the teachers. They care most about learning, so ready to learn is my strongest. It goes last." Number the notes 1, 2, 3 with the strongest as 3.
- Write paragraph one in front of the class, thinking aloud: "First of all, a longer lunch would give us time to finish our food. Right now we have twenty minutes, and many of us are still eating when the bell rings. For example, on Tuesday half my table threw away part of their sandwiches."
- Circle "First of all" and "For example." Say these are signposts: one tells the reader a new reason is starting, the other tells them proof is coming.
- Write only the opening sentences of the other two paragraphs: "Another reason is that we could play games that take longer, like football." and "Most importantly, we would come back to class calm and ready to learn." Circle "Another reason" and "Most importantly." Point out that "Most importantly" only makes sense on the last reason, so the linking word and the order work together.
- Now cut the three reason strips apart and put "ready to learn" first. Read the reasons in that order. Ask: "How does it feel to end on finishing sandwiches?" The answer to fish for: it fizzles, because the best reason is used up and the reader's last thought is the weakest one.
- Write the conclusion: "In conclusion, a longer lunch break would let us finish our food, play proper games and come back ready to learn. That is why our school should add ten minutes to lunch." Underline the three reasons inside it, and say why: the conclusion reminds the reader of the case, not just the opinion.
“Put your best reason last. The last thing your reader reads is the thing they remember, so make it the reason that will change their mind.”
Guided practice — plan, rank, check
12 min- Give the class three opinions to choose from: "Every class should have a pet." "Children should be allowed to choose their own bedtime." "Our school should have a garden." Each student picks one and writes it in the opinion box.
- Students write three reasons as notes of no more than five words each, on separate strips.
- Partner check, asking two questions written on the board: "Are these three DIFFERENT reasons, or one reason said three ways?" and "Who is the reader, and which reason would convince them most?"
- If two strips say the same thing — "pets are fun" and "pets make us happy" — the partner hands one back and the writer replaces it. Do this at the note stage because overlap is easy to see in five words and hard to see in five sentences.
- Students glue the strips in order on the planning grid, strongest last, and write the first paragraph using a linking word card and one "for example."
“Tell your partner who your reader is before you tell them your reasons. Then they can judge whether your strongest reason really is the strongest.”
Independent practice
8 min- Students complete the opinion writing page. The prompt and a planning grid are on the sheet.
- Before writing, they number their reasons and write one line under the grid: "My strongest reason is ___ because my reader cares about ___."
- Circulate and read only the first word of each paragraph. If no paragraph starts with a linking word, point at the cards rather than correcting.
Close — does it build?
2 min- Read one student's three reason notes aloud in their chosen order.
- Ask the class: "Does it build? Which reason do you remember?" If they remember the last one, the order worked.
What goes wrong, and why
Each of these is a reasoning error rather than carelessness. The fix addresses the reasoning.
Lists reasons in the order they came to mind, so the piece opens on its best point and ends on "and pets are cute."
Why: Generating reasons and ordering them feel like one job. The first reason that arrives is usually the strongest, because it is the one the student really believes, so it ends up first by default and nothing prompts a second decision.
Fix: Make ranking a separate physical step: reasons on strips, strips moved before any drafting starts. Model it with the lunch-break strips, reading "ready to learn" first and then last, and ask which version leaves the reader more convinced.
Gives one reason split three ways: "Pets are fun. Pets make us happy. We would enjoy a pet."
Why: The student holds one strong feeling and has a lot to say about it, so it naturally divides into several sentences that each look like a reason. Without a test for difference, three sentences feel like three reasons.
Fix: Teach the swap test at the note stage: "If I crossed out this reason, would the other one still say the same thing?" For "fun" and "happy" the answer is yes, so one goes. Offer reason directions as prompts: one about learning, one about health, one about fairness.
Ends with the opening reworded: "So that is why I think we should have a pet."
Why: Both the introduction and the conclusion contain the opinion, so students reasonably think they are the same kind of sentence. They have often been told a conclusion "says it again."
Fix: Give the conclusion a job the opening does not have: it must name all three reasons. Use the lunch-break conclusion as a frame — "In conclusion, ___, ___ and ___. That is why ___." — and have students underline the three reasons in their own.
If they are not there yet
- Two reasons rather than three, with the frame "My first reason is ___. For example, ___. Most importantly, ___."
- Provide pre-written reason strips for "Every class should have a pet" (it teaches responsibility; it is calming; we can learn about animals) so the student's work is ranking and linking, not generating.
- A personal word bank on the desk with four linking words only: because, for example, another reason, most importantly.
If they finish early
- Add a fourth paragraph that answers an objection: "Some people say a pet is too much work. However, ___." Then decide where in the order it belongs and say why.
- Rewrite the same three reasons in a different order for a different reader — classmates instead of the principal — and explain why the strongest reason changed.
- Read this weak conclusion and rewrite it so it names the reasons: "So that is why we should have a garden. The end."
Exit ticket
Number these reasons 1-3 for a letter to the principal, strongest last, and say why: "A pet is fun to watch." "Feeding it would teach us responsibility." "We could learn about animals in science."
What to look for: Fun first, then either of the others last with a reader-based reason. "Fun" last means strength is judged by the student's feelings, not the reader. "That's how I thought of them" means ranking needs to be a separate step.
Printable practice for W.3.1
Free to print and copy, answer key included. Each sheet can generate a fresh set of problems for a retake.
- Opinion in a Sensible OrderWrite on the lines. Use the checklist.
Questions about An Opinion Organized Into Reasons
How long does the An Opinion Organized Into Reasons lesson take?
40 minutes, split across 5 timed sections: warm-up 5 min, teach 13 min, guided practice 12 min, independent practice 8 min, close 2 min. The minutes are stated per section and add up to the stated length, so the plan can be cut or extended at a section boundary rather than abandoned halfway.
Which standard does An Opinion Organized Into Reasons teach?
CCSS.ELA-LITERACY.W.3.1 — W.3.1, Writing for Grade 3: “Write opinion pieces on topics or texts, supporting a point of view with reasons.” In plain terms, write an opinion piece with an introduction, ordered reasons and a conclusion.
What do I need to teach this lesson?
Linking word cards: because, since, therefore, for example, another reason, most importantly, in conclusion, a planning grid with an opinion box, three numbered reason boxes and a conclusion box, strips of paper for cutting reasons apart and re-ordering them and the printable practice sheet linked at the end of this plan. Everything listed is either ordinary classroom equipment or a free printable from this site — there is nothing to buy and nothing to prepare beyond photocopying.
What mistakes should I expect in this lesson?
Three, each a reasoning error rather than carelessness: lists reasons in the order they came to mind, so the piece opens on its best point and ends on "and pets are cute."; gives one reason split three ways: "Pets are fun. Pets make us happy. We would enjoy a pet." and ends with the opening reworded: "So that is why I think we should have a pet.". The plan gives the thinking behind each one and the teaching move that addresses the thinking rather than the symptom.
How do I know whether the lesson worked?
The exit ticket asks: “Number these reasons 1-3 for a letter to the principal, strongest last, and say why: "A pet is fun to watch." "Feeding it would teach us responsibility." "We could learn about animals in science.".” Fun first, then either of the others last with a reader-based reason. "Fun" last means strength is judged by the student's feelings, not the reader. "That's how I thought of them" means ranking needs to be a separate step. That tells you whether the class needs a reteach or a thirty-second conversation before you plan tomorrow.
Is there a worksheet to go with An Opinion Organized Into Reasons?
Yes — 1 printable W.3.1 worksheet, linked at the end of the plan and free like the rest of the site. Each one comes with an answer key and 25 versions, so the practice after the lesson can be a different paper on every desk.
Is An Opinion Organized Into Reasons free to use?
Yes. The plan, its printables and their answer keys are free to read, print and photocopy for your own class, with no account and no email capture. It was last reviewed on October 8, 2026. Please do not resell it or republish it as your own.
Last reviewed 2026-10-08. Aligned to W.3.1 of the Common Core State Standards for English Language Arts.