An Opinion Piece With Grouped Reasons
A 40-minute Grade 4 lesson on writing an opinion piece with grouped, supported reasons and a linked conclusion.
An Opinion Piece With Grouped Reasons is a free 40-minute Grade 4 English lesson plan for Common Core standard W.4.1 — write an opinion piece with grouped reasons, linking phrases 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 4
- Length:
- 40 minutes
- Standard:
- W.4.1
Grade 4 · Writing
W.4.1
Write opinion pieces on topics or texts, supporting a point of view with reasons and information.
Objective
Students will be able to sort reasons for an opinion into named groups, write one paragraph per group supported by a checkable fact, link the fact with "for instance," and conclude by naming the groups.
Students are successful when they can
- Sorts at least six reasons into two or three groups and gives each group a name.
- Writes a body paragraph for one group that opens with the group's reason and includes at least one fact that could be checked.
- Uses "for instance" or "in order to" to join a claim to its support.
- Writes a conclusion that names every group and adds no new reason.
What you need
- Eight reason cards for "Our school should have a class garden," one set per pair
- Linking phrase strip: for instance, in order to, in addition, because of this
- Chart paper with the model paragraph written in advance
- The printable practice sheet linked at the end of this plan
The lesson
Warm-up — sort eight reasons
6 min- Write the opinion on the board: "Our school should have a class garden." Hand each pair the eight reason cards: (1) We would eat more vegetables we grew ourselves. (2) We could watch a plant's life cycle for real. (3) Working outside is calming. (4) We could measure how fast plants grow in math. (5) Digging and carrying water is exercise. (6) Bees and butterflies would visit. (7) We could give spare food to the food bank. (8) Fresh air helps people concentrate.
- Ask pairs to sort the cards into two or three piles of reasons that "belong together," then write a name on a sticky note for each pile.
- Take two or three sortings. Most classes land near "Our health" (1, 3, 5, 8), "Our learning" (2, 4) and "Helping others and nature" (6, 7). Write those three names on the board. Accept a different sorting if the pair can say what the pile has in common — the naming is the skill, not matching the teacher.
Teach — one paragraph per group
12 min- Read aloud the eight reasons as eight sentences in a row. Ask: "Does this sound like an argument or like a shopping list?" Fish for "a list" — every reason gets one sentence, so none of them is ever proved.
- Point at the group "Our health." Explain that a group becomes a paragraph: the first sentence states the group's reason, and the rest prove it.
- Reveal the model paragraph on the chart paper: "First, a class garden would make us healthier. Digging, weeding and carrying watering cans are real exercise, and they happen outside in fresh air. For instance, when Room 12 grew lettuce last spring, all 28 students tasted it, even the ones who said they hated salad. In addition, children who help grow food are more willing to try it."
- Underline "For instance" and the sentence after it. Ask: "Could someone check this?" Yes — you could ask Room 12 or look at their photos. Write on the board: "FACT = could be checked. OPINION = someone could disagree."
- Run the check-it test on two support sentences: "Gardening is fun" (opinion — someone could disagree) and "Gardening includes digging and lifting" (fact — you could watch it happen). Only the second one supports a reason.
- Write the conclusion together: "A class garden would keep us healthy, teach us science and math, and help our neighbors and wildlife. That is why our school should start one this spring." Ask: "Which three words in that conclusion are the group names?" Health, learning, helping. A conclusion names the groups; it does not add a new one.
“Eight thin sentences prove nothing. Two or three strong paragraphs prove a lot. So we group first, then we give each group a paragraph, and every paragraph needs a fact — something a person could check — after the words "for instance."”
Guided practice — write the "Our learning" paragraph
12 min- Pairs write the paragraph for "Our learning" using cards 2 and 4. The opening sentence is given on the board: "Second, a class garden would help us learn."
- Each pair must include one "for instance" sentence with a fact. Offer a source of facts if needed: "A bean seed can sprout in about a week. We could measure the stem each Monday and make a line graph."
- Circulate and ask one question at every table: "Point to your fact. How could I check it?" If the answer is "you can't, it's just true," it is an opinion — send them back to the test.
- Two pairs read their paragraphs. The class names the fact in each and says how it could be checked.
“Point to your fact. Now tell me how I could check it. If I can't check it, it's an opinion wearing a fact's coat.”
Independent practice
8 min- Students complete the opinion writing page. It gives a new opinion, a set of reasons and a planning grid with a row per group.
- Required: name the groups in the grid before writing, then write one full paragraph and the conclusion.
Close
2 min- Read one student's group name and its "for instance" sentence. The class gives a thumbs up if the support passes the check-it test, sideways if it is an opinion.
What goes wrong, and why
Each of these is a reasoning error rather than carelessness. The fix addresses the reasoning.
Writes eight one-line reasons in a row: "It is healthy. It is fun. Bees like it." with nothing developed.
Why: Each reason feels like its own separate point, and in Grade 3 a list of "because" reasons was often enough. Nobody has yet shown them that a reason with no proof is just another claim.
Fix: Hand back the eight cards and make them physically stack the ones that belong together before writing anything. Then read their list and the model "Our health" paragraph aloud side by side and ask which one would persuade the principal.
Backs a reason with another opinion: "Gardens are good for us because gardening is fun."
Why: Both sentences feel like reasons, and to a nine-year-old "fun" is strong evidence. They have not met the idea that support has to be something a reader cannot simply disagree with.
Fix: Run the check-it test aloud on their support: "Could I check that gardening is fun?" Then ask what they could actually see or count in a garden, and help them turn it into "Gardening includes digging and lifting, which is exercise."
Puts a new reason in the conclusion: "Also, we could sell flowers at the fair."
Why: The idea arrived last, while writing, and the conclusion was the only place left on the page to put it.
Fix: Show the model conclusion and circle the three group names. Ask which group "sell flowers" belongs to, then have them add it to that body paragraph and rewrite the conclusion so it only names groups.
If they are not there yet
- Give the cards already sorted into two piles ("Our health" and "Our learning") so the student's job is naming and writing, not sorting.
- Provide a paragraph frame: "First, a class garden would ___. For instance, ___. In addition, ___."
- Give a fact bank of four checkable facts to choose from, so the work is matching a fact to a reason rather than inventing one.
If they finish early
- Card 8 ("Fresh air helps people concentrate") could go in "Our health" or "Our learning." Write two sentences arguing where it belongs best.
- Write a counter-argument paragraph: "Some people say a garden takes too much time. However, ..." and answer it with a fact.
- Swap the order of the groups so "Helping others and nature" comes first, then write one sentence on whether the piece is now more or less persuasive and why.
Exit ticket
Opinion: "Every class should have a pet fish." Reasons: it teaches responsibility; feeding needs a schedule; watching fish is calming; we could learn about habitats. Put them in two named groups and write one checkable fact for one group.
What to look for: Groups like "Responsibility" and "Learning," and a fact such as "a fish needs feeding once a day." A fact like "fish are nice" means the check-it test needs rerunning; four separate groups means grouping needs modeling again.
Printable practice for W.4.1
Free to print and copy, answer key included. Each sheet can generate a fresh set of problems for a retake.
- Grouped ReasonsWrite on the lines. Use the checklist.
Questions about An Opinion Piece With Grouped Reasons
How long does the An Opinion Piece With Grouped Reasons lesson take?
40 minutes, split across 5 timed sections: warm-up 6 min, teach 12 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 Piece With Grouped Reasons teach?
CCSS.ELA-LITERACY.W.4.1 — W.4.1, Writing for Grade 4: “Write opinion pieces on topics or texts, supporting a point of view with reasons and information.” In plain terms, write an opinion piece with grouped reasons, linking phrases and a conclusion.
What do I need to teach this lesson?
Eight reason cards for "Our school should have a class garden," one set per pair, linking phrase strip: for instance, in order to, in addition, because of this, chart paper with the model paragraph written in advance 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: writes eight one-line reasons in a row: "It is healthy. It is fun. Bees like it." with nothing developed; backs a reason with another opinion: "Gardens are good for us because gardening is fun." and puts a new reason in the conclusion: "Also, we could sell flowers at the fair.". 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: “Opinion: "Every class should have a pet fish." Reasons: it teaches responsibility; feeding needs a schedule; watching fish is calming; we could learn about habitats. Put them in two named groups and write one checkable fact for one group.” Groups like "Responsibility" and "Learning," and a fact such as "a fish needs feeding once a day." A fact like "fish are nice" means the check-it test needs rerunning; four separate groups means grouping needs modeling again. 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 Piece With Grouped Reasons?
Yes — 1 printable W.4.1 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 Piece With Grouped 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.4.1 of the Common Core State Standards for English Language Arts.