RI.7.8: Tracing and Evaluating an Argument and Its Claims
In plain English: RI.7.8 is the Common Core grade 7 ELA standard that asks students to trace and evaluate the argument and specific claims in a text, assessing whether the reasoning is sound and the evidence is relevant and sufficient to support the claims. Students map each claim to its reasons and evidence and judge how well it holds up. It builds on RI.6.8.
Trace and evaluate the argument and specific claims in a text, assessing whether the reasoning is sound and the evidence is relevant and sufficient to support the claims.
Common Core State Standards for English Language Arts & Literacy · Domain: Reading Standards for Informational Text · Cluster: Integration of Knowledge and Ideas · Official standard
Students trace an argument, following it from the main claim to the specific claims and to the reasons and evidence behind each, and then evaluate it: is the reasoning sound, and is the evidence relevant (connected to the claim) and sufficient (enough to convince a careful reader)? The standard asks for both steps, so every task has students first lay out the argument and then judge each part.
The main text is Benjamin Franklin's letter "An Economical Project" (1784), a satire in which he pretends to discover that the sun gives light as soon as it rises and calculates how many candles Paris could save if people got up with the sun. The teacher models with the discovery (Passage 1), pairs test the calculation (Passage 2), and students work alone on Franklin's rules for forcing people out of bed (Passage 3) and on a school newspaper editorial invented for this page (Passage 4) for the quiz. The homework pairs the end of Franklin's letter (Passage 5) with an invented letter to a town parks board (Passage 6). All six passages are printed in the lesson plan.
Learning Objectives
By the end of this lesson, students will be able to:
Trace an argument by identifying its main claim, its specific claims and the reasons and evidence for each
Evaluate the argument and its specific claims, judging how well each one holds up
Assess whether reasoning is sound, naming unproven assumptions and steps that do not follow
Assess whether evidence is relevant and sufficient to support a specific claim
Prior Knowledge Required
Students should already be comfortable with:
Tracing an argument and telling supported claims from unsupported ones RI.6.8
Citing several pieces of textual evidence with a passage and paragraph number RI.7.1
Writing arguments that support claims with clear reasons and relevant evidence W.6.1
"A classmate says: 'Our class should get a class pet hamster. Hamsters are cute, my cousin's class has one, and everyone would take care of it.' Which part of this is the claim? Which reason would you believe, and which would you question?"
Take three or four answers. On the board, write the claim ("Our class should get a hamster") and list the three reasons under it. Ask for each reason: Does it connect to the claim? Is there enough support to convince someone who disagrees? Students usually question "everyone would take care of it": the speaker gives no proof. Tell students that RI.7.8 asks them to do this with a whole text: trace the argument (follow it from claim to reasons to evidence) and evaluate it (judge how well it holds up).
Direct Instruction15 minutes
Teach the terms and leave them on the board:
Argument: a writer's attempt to convince readers, made of claims, reasons and evidence. The main claim is what the writer most wants readers to believe; specific claims are the smaller points that support it.
Reason: why the writer says the claim is true. Evidence: the facts, numbers, examples, observations or quotations that back up a reason.
Reasoning: the thinking that links the evidence to the claim. Reasoning is sound when each step follows from the one before and rests on true starting ideas. An assumption is an idea the writer takes for granted without proving it.
Evidence is relevant when it connects to the claim it supports, and sufficient when there is enough of it, and it is strong enough, to convince a careful reader who disagrees.
Counterclaim: a claim that opposes the writer's. A strong argument answers it with reasons and evidence.
Satire: writing that makes fun of people's habits or foolish ideas, often by pretending to be serious.
Tracing and evaluating: questions to ask
Step
Question
Trace: claim
What does the writer want me to believe? Which smaller claims support it?
Trace: support
What reasons and evidence go with each claim?
Evaluate: relevant
Does this evidence connect to this claim, or to something else?
Evaluate: sufficient
Is there enough evidence, of a strong enough kind, for a claim this big?
Evaluate: sound
Do the steps follow? What does the writer assume without proof?
Introduce the text. In 1784, Benjamin Franklin was living at Passy, near Paris, as the American minister (the chief representative of the United States) to France. He wrote a letter "To the Authors of the Journal of Paris," a French newspaper, and signed it only "A Subscriber." In it, he pretends to have made a surprising discovery. The letter is satire: many wealthy Parisians of the time stayed up late, slept long past sunrise and lit their homes at night with expensive candles, and Franklin pokes fun at them while making a real point about saving money. The letter is a real argument, with claims, evidence and a calculation, even though it is also a joke. It is sometimes called an early idea for daylight saving time, but Franklin proposed getting up earlier, not changing clocks. Just before Passage 1, Franklin has been at a party where guests admired a new, brighter oil lamp and wondered whether it would cost less to burn. Words to know: domestic (a household servant), negligently omitted (carelessly forgot), almanac (a yearly book that lists, among other things, the time of sunrise for each day), retarded his rising so long as till eight o'clock (rose as late as eight), astronomical (about the sun, moon and stars), countenances (faces), forbear (hold back from), natural philosopher (an old name for a scientist), abroad (outside), of consequence (as a result), owned (admitted) and subsequent (later). Franklin calls the sun "he," as many writers of his time did. Read Passage 1 aloud.
1I went home, and to bed, three or four hours after midnight, with my head full of the subject. An accidental sudden noise waked me about six in the morning, when I was surprised to find my room filled with light; and I imagined at first, that a number of those lamps had been brought into it; but, rubbing my eyes, I perceived the light came in at the windows. I got up and looked out to see what might be the occasion of it, when I saw the sun just rising above the horizon, from whence he poured his rays plentifully into my chamber, my domestic having negligently omitted, the preceding evening, to close the shutters.
2I looked at my watch, which goes very well, and found that it was but six o'clock; and still thinking it something extraordinary that the sun should rise so early, I looked into the almanac, where I found it to be the hour given for his rising on that day. I looked forward, too, and found he was to rise still earlier every day till towards the end of June; and that at no time in the year he retarded his rising so long as till eight o'clock. Your readers, who with me have never seen any signs of sunshine before noon, and seldom regard the astronomical part of the almanac, will be as much astonished as I was, when they hear of his rising so early; and especially when I assure them, that he gives light as soon as he rises. I am convinced of this. I am certain of my fact. One cannot be more certain of any fact. I saw it with my own eyes. And, having repeated this observation the three following mornings, I found always precisely the same result.
3Yet it so happens, that when I speak of this discovery to others, I can easily perceive by their countenances, though they forbear expressing it in words, that they do not quite believe me. One, indeed, who is a learned natural philosopher, has assured me that I must certainly be mistaken as to the circumstance of the light coming into my room; for it being well known, as he says, that there could be no light abroad at that hour, it follows that none could enter from without; and that of consequence, my windows being accidentally left open, instead of letting in the light, had only served to let out the darkness; [...] I owned that he puzzled me a little, but he did not satisfy me; and the subsequent observations I made, as above mentioned, confirmed me in my first opinion.
Benjamin Franklin, An Economical Project, the discovery (Passage 1: the first half of the letter's reasoning; one clause is left out and marked [...]) (1784; this edition 1906). Public domain (published 1906). Source text.
Trace: find a specific claim and its evidence
In paragraph 2, Franklin assures readers "that he gives light as soon as he rises." What kind of statement is this, and what support does he give for it?
Result: It is a specific claim: the sun's light arrives the moment it rises. Franklin supports it with three pieces of evidence. He saw it himself ("I saw it with my own eyes"), he checked it again ("having repeated this observation the three following mornings"), and he found the sunrise time "in the almanac." Tracing means writing the claim down and listing each piece of evidence under it.
Evaluate: relevant and sufficient evidence
Is Franklin's evidence for the claim that the sun gives light when it rises relevant and sufficient?
Result: It is relevant: each piece is about sunlight at sunrise. For a claim this small, it is also sufficient: four mornings of looking, plus the almanac, would convince any doubter. That is the joke. Franklin piles strong evidence on a fact that everyone already knows, to tease readers who never get up early enough to see it.
Evaluate: a claim with no evidence
Franklin writes, "Your readers, who with me have never seen any signs of sunshine before noon, and seldom regard the astronomical part of the almanac, will be as much astonished as I was." What does this sentence claim, and how well is the claim supported?
Result: It claims that his readers, like him, sleep until noon and never notice the sunrise times. Franklin offers no evidence about his readers at all: no count, no examples. He speaks for everyone ("who with me") on the strength of his own habits. The claim is not sufficiently supported, and the whole money-saving plan will depend on it.
Assess reasoning: a false starting idea
The "learned natural philosopher" reasons that "it being well known ... that there could be no light abroad at that hour, it follows that none could enter from without," so Franklin's open windows must have served "to let out the darkness." Is this reasoning sound?
Result: No. Each step follows from the one before, but the first step is false: there is light outside at six in the morning in spring, as Franklin saw. Reasoning that starts from a false idea cannot be sound, however clever the steps. "Well known" is not evidence either. Franklin answers with evidence instead: "the subsequent observations I made."
Trace the whole passage
Put the pieces together. How does Passage 1 build toward Franklin's main claim?
Result: Franklin's main claim, which Passage 2 will spell out, is that Parisians could save money by rising with the sun. Passage 1 lays the groundwork with two specific claims: that the sun gives light as soon as it rises (well supported) and that his readers sleep until noon (not supported). It also answers one counterclaim, the philosopher's, whose reasoning is unsound. Diagram 1 maps these parts.
Claim, support, check. Show Diagram 1 and model the three moves with the examples: write the claim; list the reasons and evidence under it; check each piece (relevant? sufficient? sound?). Stress that an argument can be funny and still have real parts to trace. Give students a frame: "Franklin claims that ___. He supports this with ___. This evidence is / is not relevant because ___, and it is / is not sufficient because ___. The reasoning is / is not sound because ___."
Guided Practice15 minutes
Read Passage 2 aloud: the calculation that follows Passage 1 in the letter. French money of the time helps here: the livre tournois (usually just "livre") was the main unit of money, and a sol was one twentieth of a livre. Other words to know: induced (led), muster up (gather), utility (usefulness), bougies (French for candles), moderate allowance (a fair, not too high, amount), medium quantity (average amount), wax and tallow (the materials candles were made of; tallow is animal fat) and immense (huge).
1This event has given rise in my mind to several serious and important reflections. I considered that, if I had not been awakened so early in the morning, I should have slept six hours longer by the light of the sun, and in exchange have lived six hours the following night by candle-light; and, the latter being a much more expensive light than the former, my love of economy induced me to muster up what little arithmetic I was master of, and to make some calculations, which I shall give you, after observing that utility is, in my opinion the test of value in matters of invention, and that a discovery which can be applied to no use, or is not good for something, is good for nothing.
2I took for the basis of my calculation the supposition that there are one hundred thousand families in Paris, and that these families consume in the night half a pound of bougies, or candles, per hour. I think this is a moderate allowance, taking one family with another; for though I believe some consume less, I know that many consume a great deal more. Then estimating seven hours per day as the medium quantity between the time of the sun's rising and ours, he rising during the six following months from six to eight hours before noon, and there being seven hours of course per night in which we burn candles, the account will stand thus;—
3In the six months between the 20th of March and the 20th of September, there are Nights 183 Hours of each night in which we burn candles 7 Multiplication gives for the total number of hours 1,281 These 1,281 hours multiplied by 100,000, the number of inhabitants, give 128,100,000 One hundred twenty-eight millions and one hundred thousand hours, spent at Paris by candle-light, which, at half a pound of wax and tallow per hour, gives the weight of 64,050,000 Sixty-four millions and fifty thousand of pounds, which, estimating the whole at the medium price of thirty sols the pound, makes the sum of ninety-six millions and seventy-five thousand livres tournois 96,075,000
4An immense sum! that the city of Paris might save every year, by the economy of using sunshine instead of candles.
Benjamin Franklin, An Economical Project, the calculation (Passage 2) (1784; this edition 1906). Public domain (published 1906). Source text.
Pairs fill in Diagram 2, the claim check card, for the claim "An immense sum!" could be saved (paragraph 4). They answer the three questions below, then share. Teacher notes:
Trace the chain. List each step from the table in paragraph 3. Teacher note: 183 nights times 7 hours gives 1,281 hours; times 100,000 gives 128,100,000 hours; at half a pound an hour that is 64,050,000 pounds of candles; at 30 sols (one and a half livres) a pound that is 96,075,000 livres. The arithmetic is correct. Tracing shows that the huge total rests on three starting numbers: the number of families, the half pound an hour and the seven hours a night.
The seven hours. Where does "seven hours per day" come from? Teacher note: Franklin calls it "the medium quantity between the time of the sun's rising and ours." The number assumes that Parisians rise around noon, which is claim B from Passage 1, the claim with no evidence. The reasoning passes an unsupported assumption into the total.
Families or inhabitants? Compare the start of paragraph 2 with the fifth line of the table. Teacher note: Franklin supposes "one hundred thousand families" but multiplies by "100,000, the number of inhabitants." A family is not the same as a person, so the reasoning shifts its meaning in the middle of the calculation. A careful reader catches this even though the multiplication itself is right.
Independent Practice15 minutes
Students read Passage 3, the next part of Franklin's letter, and Passage 4, a school newspaper editorial invented for this page, on their own, and answer the quiz with Passages 1-4 open. They may fill in a fresh copy of Diagram 2 for Passage 4 first. Words to know for Passage 3: obstinately attached (stubbornly stuck), induce (persuade), Nil desperandum (Latin for "never despair"), contrive (find a way), compel (force), a louis (a gold coin worth 24 livres), salutary (helpful), chandlers (candle sellers), coaches, &c. (carriages and so on), sluggards (lazy people), reformation (change for the better), irregularity (bad habit), ce n'est que le premier pas qui coûte (French for "only the first step is hard"), oblige (force), unconsumed (not used up) and ensuing (following). For Passage 4: a shelter is a place that gives people who have no home a place to stay and things they need.
1If it should be said, that people are apt to be obstinately attached to old customs, and that it will be difficult to induce them to rise before noon, consequently my discovery can be of little use; I answer, Nil desperandum. I believe all who have common sense, as soon as they have learnt from this paper that it is daylight when the sun rises, will contrive to rise with him; and, to compel the rest, I would propose the following regulations;
2First. Let a tax be laid of a louis per window, on every window that is provided with shutters to keep out the light of the sun.
3Second. Let the same salutary operation of police be made use of, to prevent our burning candles, that inclined us last winter to be more economical in burning wood; that is, let guards be placed in the shops of the wax and tallow chandlers, and no family be permitted to be supplied with more than one pound of candles per week.
4Third. Let guards also be posted to stop all the coaches, &c. that would pass the streets after sun-set, except those of physicians, surgeons, and midwives.
5Fourth. Every morning, as soon as the sun rises, let all the bells in every church be set ringing; and if that is not sufficient, let cannon be fired in every street, to wake the sluggards effectually, and make them open their eyes to see their true interest.
6All the difficulty will be in the first two or three days; after which the reformation will be as natural and easy as the present irregularity; for, ce n'est que le premier pas qui coûte. Oblige a man to rise at four in the morning, and it is more than probable he will go willingly to bed at eight in the evening; and, having had eight hours sleep, he will rise more willingly at four in the morning following. But this sum of ninety-six millions and seventy-five thousand livres is not the whole of what may be saved by my economical project. You may observe, that I have calculated upon only one half of the year, and much may be saved in the other, though the days are shorter. Besides, the immense stock of wax and tallow left unconsumed during the summer, will probably make candles much cheaper for the ensuing winter, and continue them cheaper as long as the proposed reformation shall be supported.
Benjamin Franklin, An Economical Project, the regulations (Passage 3) (1784; this edition 1906). Public domain (published 1906). Source text.
1Every month, our school should donate the clothes and bottles that have sat in the lost-and-found bin for more than a week to the Harbor Street Shelter. The bin is overflowing, the owners are not coming back, and people in our town need these things.
2First, the bin is overflowing. Last Friday, I counted everything in it: 146 items, including 63 sweatshirts and jackets, 38 water bottles, 21 lunch boxes, 14 hats and 10 single gloves. Some of the jackets have been there since the first week of school.
3Second, the owners are not coming back. The school office told me that only 9 items were claimed in all of October, and 4 of those 9 had been in the bin for more than a week. My friend Ava lost a jacket in September and never even went to look for it. Students at our school just do not care about their things.
4Third, people need what is in that bin. The Harbor Street Shelter told me that it gives out about 40 coats a week in the winter, and that it always runs short of warm clothes in January. Also, last year our school won the district's recycling award.
5Some people will say that an owner might still come back for a lost item. That is why my plan waits one week. If an item has been in the bin for a week, its owner has given up on it.
6Let's clean out the bin and help our neighbors stay warm.
Written for this page, Give Our Lost and Found a Second Life (Passage 4: an invented school newspaper editorial written for this page; the writer, the counts and the shelter are invented). Original passage written for this page.
Closure5-10 minutes
Exit ticket: (1) Write one claim from any passage and one piece of evidence for it. (2) Finish the sentence: "Evidence can be relevant and still not be sufficient when ___."
Teacher note on the sources and the facts. Passages 1, 2, 3 and 5 are Franklin's own words, from an edition published in 1906, with old spellings kept ("honour"). The letter is satire, so some claims are meant to be absurd, such as firing cannon in the streets; students can still trace and evaluate the argument, and noticing the joke is part of evaluating it. The rule about coaches spares "physicians, surgeons, and midwives" (a midwife helps women give birth), whose work does not stop at night. The editor of the 1906 edition dates the letter March 20, 1784. Passages 4 and 6 are invented for this page: the writers, the school, the shelter, the town, the pool and every number in them are made up, and the numbers are chosen to be realistic. Franklin did not invent daylight saving time; the idea of setting clocks ahead came much later.
For homework: students read Passage 5, the end of Franklin's letter, and Passage 6, a letter to a town's parks board, invented for this page. Words to know for Passage 5: bestowed (given), place, pension, exclusive privilege (a government job, regular payments, or the sole right to use an invention), envious (jealous), the ancients (people of ancient Greece and Rome), it does not follow thence (that does not prove), the moderns (people of Franklin's own time), judicious (wise), prudent (careful), professing (claiming), necessities of the state (the government's needs) and unwholesome (unhealthy). For Passage 6: a parks board is a group of people who run a town's parks, and a certified lifeguard has passed a lifeguard training course.
1For the great benefit of this discovery, thus freely communicated and bestowed by me on the public, I demand neither place, pension, exclusive privilege, nor any other reward whatever. I expect only to have the honour of it. And yet I know there are little, envious minds, who will, as usual, deny me this, and say, that my invention was known to the ancients, and perhaps they may bring passages out of the old books in proof of it. I will not dispute with these people, that the ancients knew not the sun would rise at certain hours; they possibly had, as we have, almanacs that predicted it; but it does not follow thence, that they knew he gave light as soon as he rose. This is what I claim as my discovery. If the ancients knew it, it might have been long since forgotten; for it certainly was unknown to the moderns, at least to the Parisians, which to prove, I need use but one plain simple argument. They are as well instructed, judicious, and prudent a people as exist anywhere in the world, all professing, like myself, to be lovers of economy; and, from the many heavy taxes required from them by the necessities of the state, have surely an abundant reason to be economical. I say it is impossible that so sensible a people, under such circumstances, should have lived so long by the smoky, unwholesome, and enormously expensive light of candles, if they had really known, that they might have had as much pure light of the sun for nothing. I am, &c.
Benjamin Franklin, An Economical Project, the ending (Passage 5) (1784; this edition 1906). Public domain (published 1906). Source text.
1To the Parks Board:
2Every year, the Maple Street Pool closes on August 15, about three weeks before Labor Day. I am writing to ask the board to keep the pool open until Labor Day. People still want to swim in late August, and the pool would pay for itself.
3People still want to swim. On the last Saturday before the pool closed this year, 412 people came. The Parks Department's own report says the pool averaged 180 visitors a day during its last two weeks of the season. Last year, the temperature reached 90 degrees Fahrenheit on 9 of the days between August 15 and Labor Day. Everyone I talked to at the snack bar agrees with me.
4The pool would pay for itself. Admission is $4, and the Parks Department says it costs about $1,500 a day to run the pool, counting lifeguards, water and chemicals. With so many swimmers, the money from tickets would cover the cost.
5My family has lived in this town for thirty years, and my grandfather helped paint the pool in 1985. It is part of who we are.
6Some people say the pool must close because many lifeguards go back to college in August. But the town could hire high school students who are certified lifeguards. The high school swim team has 26 members.
7Please give our town three more weeks of summer.
8A Maple Street neighbor
Written for this page, Keep the Pool Open Until Labor Day (Passage 6: an invented letter to a town parks board written for this page; the town, the writer and all numbers are invented). Original passage written for this page.
Differentiation Strategies
For Struggling Students
Give a copy of Diagram 1 with the evidence boxes blank, and have students fill them in with quotations from Passage 1 before the class discusses the verdicts
Highlight claims in one color and evidence in another while reading Passage 4 aloud, before students answer the quiz
For Guided Practice, give the steps of Franklin's table on separate strips for pairs to put in order before they evaluate them
For Advanced Students
Ask them to rewrite Passage 4 so that every reason has relevant and sufficient evidence, and explain each change
Have them redo Franklin's calculation with their own estimate for one supposition and explain how much the total changes
Ask them to write the philosopher's reply to Franklin's "subsequent observations" and then evaluate its reasoning
Assessment Guidance
What to Look For
Check that students trace before they judge: each answer should name the specific claim, quote its support, and then say whether the evidence is relevant, whether it is sufficient, and whether the reasoning is sound, with a reason for each judgment. The strongest answers name the exact assumption or jump in the reasoning. A common weak answer judges the claim itself ("I agree, lost clothes should be donated") instead of its support; ask "What evidence does the writer give, and is it enough?"
02
Classroom Activities
3 Activities
1
Claim Sort
15 minPairs
Each pair gets one claim card and eight support cards, all written for this activity. Pairs sort the support cards into three piles: relevant and strong, relevant but weak, and not relevant. Then they decide whether the strong pile is sufficient.
The Cards
Claim card: "Our school should add a ten-minute stretch break in the middle of the day." Support cards:
"In a survey of 120 students at our school, 87 said they feel restless by the third class period."
"My older brother says his school has a stretch break."
"Stretching is easy to do in a classroom and needs no equipment."
"Our gym teacher is the best coach in the district."
"Two teachers at our school tried a five-minute stretch break for a month and wrote that their students paid closer attention afterward."
"Everybody loves stretching."
"The school day already has four minutes between classes, which is barely enough time to get to the next room."
"The school cafeteria serves pizza on Fridays."
Procedure
Pairs sort the eight cards into the three piles and write one sentence on the back of each card explaining its pile (8 minutes)
Pairs decide whether the "relevant and strong" pile is sufficient, and write one more piece of evidence that would make the argument stronger (4 minutes)
Two pairs compare their piles and settle one disagreement (3 minutes)
Sample sort for the teacher (other sorts can be right with good reasons): strong, cards 1, 5 and 7; weak, cards 2, 3 and 6; not relevant, cards 4 and 8
Discussion Questions
Card 6 says "Everybody." What would a writer need in order to make that kind of claim fairly?
Card 5 is about two teachers. Is that enough to convince a principal? What would be enough?
Modification
For students who need support, start with only cards 1, 4 and 6, one from each pile, and sort them together before pairs sort the rest.
2
Argument Chain
15 minGroups of 3-4
Groups get a paper chain of five links, each with one step of a short argument written for this activity. They put the links in order from evidence to claim, then look for the weak link.
The Five Links (shuffled)
"So the town should build a new library."
"The library had 40,000 visits last year, up from 30,000 five years ago."
"A bigger building would bring even more people."
"The current building has room for only 60 chairs."
"More visits mean the building is often crowded."
Procedure
Groups order the links: the evidence (visits and chairs, links 2 and 4), the reasoning that connects them (link 5), the prediction (link 3) and the claim (link 1) (5 minutes)
Groups mark the weakest link with a sticky note and explain why. Many groups choose link 3: the argument gives no evidence that a bigger building would bring more people (5 minutes)
Groups write one new piece of evidence that would repair the weak link, for example a count of people turned away when the library was full (5 minutes)
Discussion Questions
Can every link be true and the claim still be weak? How?
Which link is a fact that could be checked, and which are ideas the writer assumes?
3
Stand on the Line
10 minWhole class
A strip of tape across the room runs from "Not supported" at one end to "Well supported" at the other. The teacher reads a claim with its evidence, and students stand at the spot that shows how well supported they think it is, then defend their spot.
Claims and Evidence
"Dogs are better pets than cats, because my dog is very friendly."
"The crosswalk by the park is dangerous: the town counted 14 near-misses there in one month, more than at any other crossing it checked."
"Homework should be banned, because students would have more free time."
Procedure
After each claim, students have 30 seconds to choose a spot
Two students from different spots explain their choice, naming whether the evidence is relevant, sufficient, or both
Students may move after hearing the reasons; ask the movers what changed their minds
Variation
For a harder version, students rewrite one claim's evidence so that the class would move toward "Well supported," and the class votes again.
03
Diagrams & Visual Aids
2 diagrams
Diagram 1: An Argument Map of Passage 1
An original map of Passage 1: Franklin's main claim, two specific claims and the philosopher's counterclaim, with the support for each and an evaluation. Green marks support that holds up; red marks support that is too thin or reasoning that fails.
Diagram 2: Claim Check Card
Pairs copy this card in Guided Practice for Passage 2, and students may use it again for Passage 4. They write the claim, trace its reasons and evidence, check each piece, and give a verdict.
04
Homework Assignment
~30 min
RI.7.8 Homework: Franklin's Last Argument and a Letter About the Pool
Directions: Read Passage 5 and Passage 6 at the end of the lesson plan (in Closure). Cite them by passage and paragraph, for example (Passage 6, paragraph 3). Answer Problems 1-5 in 3-5 sentences each, and show your arithmetic in Problem 5.
Part 1: Franklin's Last Argument (Problems 1-2)
Near the end of Passage 5, Franklin says he needs "but one plain simple argument" to prove that his discovery "certainly was unknown" to the Parisians. Trace this argument: write the claim, then list the reasons he gives for it, in order.
Is the reasoning in Franklin's "one plain simple argument" sound? Explain what Franklin assumes without proof, and name one other reason, not mentioned by Franklin, why sensible people might keep burning candles at night.
Part 2: Tracing the Pool Letter (Problems 3-4)
Trace Passage 6. Write the main claim, the two reasons the writer states in paragraph 2, and the evidence the writer gives for each reason.
Choose one piece of evidence in Passage 6 that is relevant to the writer's claim and one that is not relevant. Explain your choices.
Part 3: Testing and Judging the Letter (Problems 5-6)
The writer says, "With so many swimmers, the money from tickets would cover the cost." Use the letter's own numbers to test this claim for an average day at the end of the season (180 visitors) and for a busy Saturday (412 visitors). Is the claim supported?
Write a paragraph of 6-8 sentences evaluating Passage 6. Decide whether its reasoning is sound and its evidence relevant and sufficient, citing at least three details, and name one piece of evidence that would make the argument stronger.
Rubric
Criterion
Full Credit (2 pts)
Partial Credit (1 pt)
No Credit (0 pts)
Tracing
States the claims accurately and lists the reasons and evidence for each
Finds the main claim but misses or mixes up the support
Claim not identified
Relevance and Sufficiency
Judges specific evidence as relevant or not, and enough or not, with reasons
Judges evidence without explaining why
Not addressed
Soundness of Reasoning
Names an assumption or a step that does not follow, and explains the problem
Says the reasoning is weak without saying where
Not addressed
Evidence and Accuracy
Quotes both passages with paragraph numbers; the arithmetic in Problem 5 is correct
Some evidence, or one error
No evidence, or several errors
05
Quiz: 20 Questions
Interactive, with answers
Instructions
Questions 1-3 are about the terms of the standard. Questions 4-7 use Passage 1 (Direct Instruction), questions 8-10 use Passage 2 (Guided Practice), questions 11-13 and 18 use Passage 3, and questions 14-17 use Passage 4 (both in Independent Practice). Question 19 uses Passages 1 and 2, and question 20 uses Passages 1-3. Your score updates as you answer, and Reset quiz clears everything.
Multiple choice: pick an option to check it. Short answer: write your answer, then reveal the model answer.
0 of 20 answered · 0 correct
Question 1 of 20 · Multiple Choice
Which sentence is a claim that a writer would need to support with reasons and evidence?
Answer: C
Choice C states an opinion about what should happen, which people can disagree with, so it needs support. Choices A, B and D are facts that can be checked with a schedule, a record or a visit; they could serve as evidence, but they are not claims to argue.
Question 2 of 20 · Multiple Choice
A writer claims that the school needs more bike racks. Which piece of evidence is relevant to this claim?
Answer: B
Choice B connects directly to the claim: it shows the racks are too few. Choice A is true but does not bear on this school's racks. Choice C is a personal preference. Choice D changes the subject to a different need.
Question 3 of 20 · Multiple Choice
Reasoning in an argument is sound when
Answer: B
Choice B is the meaning of sound reasoning. Choices A and C describe style and repetition, which can make a weak argument sound strong. Choice D confuses agreement with good reasoning: an argument can be popular and still unsound.
Question 4 of 20 · Multiple Choice
Passage 1, paragraph 2: Franklin writes, "I am convinced of this. I am certain of my fact. One cannot be more certain of any fact." How much do these three sentences add to the support for his claim?
Answer: A
Choice A: feeling certain is not a reason or a fact; the support is in the sentences that follow, "I saw it with my own eyes" and the repeated observation. Choice B treats confidence as evidence. Choice C misreads the passage: the almanac gave the right hour. Choice D reverses the passage, which says readers "will be as much astonished as I was."
Question 5 of 20 · Multiple Choice
In Passage 1, which detail shows that Franklin himself keeps the late hours he says his readers keep?
Answer: D
Choice D: going to bed at three or four in the morning shows his own habit. Choice A is about his watch being accurate, not his hours. Choice B is about not reading the almanac's sunrise tables, not about the hours he keeps. Choice C explains why light could get into his room, not when he goes to bed.
Question 6 of 20 · Multiple Choice
Passage 1, paragraph 3: people Franklin talks to "do not quite believe me." Does their disbelief weaken his claim that the sun gives light when it rises?
Answer: C
Choice C: other people's doubt does not change what Franklin saw on four mornings. Choice A treats popularity as proof. Choice B has no support: the passage calls only one of them "a learned natural philosopher," and it does not say Franklin lacks knowledge. Choice D goes beyond the text: Franklin says only that they do not believe him.
Question 7 of 20 · Multiple Choice
Why does Franklin present the fact that the sun gives light at sunrise as a surprising "discovery"?
Answer: A
Choice A: the letter is satire, and treating a fact everyone knows as a discovery pokes fun at readers "who with me have never seen any signs of sunshine before noon." Choice B takes the joke literally. Choice C contradicts the passage: the almanac gave the same hour his watch showed. Choice D misreads the passage: the lamps come up only because at first he thought the light came from them.
Question 8 of 20 · Multiple Choice
Passage 2, paragraph 1: before his calculation, Franklin says that "utility is, in my opinion the test of value in matters of invention." What job does this sentence do in his argument?
Answer: B
Choice B: Franklin says a discovery is "good for nothing" unless it is useful, then offers the calculation to show that his is useful. Choice A reverses the point. Choice C confuses this sentence with the supposition in paragraph 2. Choice D mixes up Passage 1's counterclaim with this later step.
Question 9 of 20 · Multiple Choice
Franklin supposes that each family burns half a pound of candles an hour, and says, "I think this is a moderate allowance ... for though I believe some consume less, I know that many consume a great deal more." How well is the half-pound figure supported?
Answer: C
Choice C: "I think," "I believe" and "I know" state opinions; no count, record or example backs them up, so the figure is not sufficiently supported. Choices A and B invent evidence the passage never mentions. Choice D misreads the passage, which says some families burn less and many burn more, not that most burn none.
Question 10 of 20 · Multiple Choice
Franklin's total of 96,075,000 livres assumes 100,000 families. Keeping his other numbers the same, what would the saving be if only 50,000 families burned candles this way?
Answer: D
Choice D: half as many families means half the hours, half the candles and half the money: 96,075,000 ÷ 2 = 48,037,500 livres. This shows how much the total depends on one unproven supposition. Choice A forgets to change the total. Choice B doubles instead of halving. Choice C is Franklin's number of pounds of candles, not livres, and it is for 100,000 families.
Question 11 of 20 · Multiple Choice
Passage 3, paragraph 1: Franklin imagines readers saying that people are "obstinately attached to old customs." How does he answer this counterclaim?
Answer: B
Choice B: he answers "Nil desperandum" and says, "I believe all who have common sense ... will contrive to rise with him," then proposes regulations "to compel the rest." He gives a belief and a plan, not evidence. Choices A and D invent evidence that is not in the passage. Choice C reverses his answer.
Question 12 of 20 · Multiple Choice
Franklin predicts, "Oblige a man to rise at four in the morning, and it is more than probable he will go willingly to bed at eight in the evening." Which is the best evaluation of this reasoning?
Answer: D
Choice D: it is reasonable that someone up at four will be tired by eight, but the prediction rests on forcing people to rise, which the plan takes for granted. Choice A invents a test. Choice B reverses his claim. Choice C is wrong because "he will go willingly to bed at eight" is a claim about the future.
Question 13 of 20 · Multiple Choice
Franklin adds that "much may be saved in the other" half of the year, "though the days are shorter." How well is this claim supported?
Answer: A
Choice A: after a detailed calculation for one half of the year, he offers only "much" for the other half, with no numbers. Choice B misreads the table, which covers "the six months between the 20th of March and the 20th of September." Choice C is wrong because the regulations list no savings. Choice D confuses a second, separate claim with support for this one.
Question 14 of 20 · Multiple Choice
In Passage 4, which piece of evidence is not relevant to the claim that the school should donate lost-and-found items?
Answer: D
Choice D: winning a recycling award says nothing about whether lost items should be given away. Choice A supports the reason that the bin is overflowing. Choice B supports the reason that people need the items. Choice C bears on whether owners come back, so it is relevant, even though it does not help the writer as much as the writer thinks.
Question 15 of 20 · Short Answer
Trace the argument in Passage 4. Write the main claim, the three reasons, and one piece of evidence for each reason.
Model answer: Main claim: "Every month, our school should donate the clothes and bottles that have sat in the lost-and-found bin for more than a week to the Harbor Street Shelter" (paragraph 1). Reason 1: the bin is overflowing; evidence, "146 items, including 63 sweatshirts and jackets" (paragraph 2). Reason 2: the owners are not coming back; evidence, "only 9 items were claimed in all of October" (paragraph 3). Reason 3: people need the items; evidence, the shelter "gives out about 40 coats a week in the winter" (paragraph 4). Rubric: 2 points for the claim and all three reasons, each with evidence; 1 point for the claim and one or two supported reasons; 0 points otherwise.
Question 16 of 20 · Short Answer
Passage 4, paragraph 3: "My friend Ava lost a jacket in September and never even went to look for it. Students at our school just do not care about their things." Evaluate this evidence and what the writer concludes from it.
Model answer: The story about Ava is relevant, since it is about a student who did not look for a lost item, but it is not sufficient: one student cannot show what all students at the school think. Concluding that "Students at our school just do not care" jumps from one case to everyone, so the reasoning is weak. Sufficient evidence would be something like a survey of many students or a count of how many owners ever come to look. Rubric: 2 points for judging both relevance and sufficiency and naming the jump from one case to all; 1 point for one of these; 0 points otherwise.
Question 17 of 20 · Short Answer
Passage 4, paragraph 5, says that "If an item has been in the bin for a week, its owner has given up on it." Is this reasoning sound? Use the writer's own evidence from paragraph 3 in your answer.
Model answer: No. The writer assumes that owners who have not come back in a week never will, but the writer's own evidence says the opposite: "4 of those 9 had been in the bin for more than a week" when they were claimed. Almost half of the items that were claimed in October would have been given away under the one-week rule. The reasoning rests on a false starting idea, so it is not sound; a longer wait, or a display of the items first, would fit the evidence better. Rubric: 2 points for judging the reasoning unsound and using the 4 of 9 detail; 1 point for a judgment without that evidence; 0 points otherwise.
Question 18 of 20 · Short Answer
In Passage 3, Franklin proposes four regulations, from a tax on shutters to cannon fired in every street. Are the regulations evidence for his claim? Explain what they add to the argument, and what they show about his purpose.
Model answer: They are not evidence. Evidence shows that a claim is true; the regulations are proposals for forcing people to follow the plan, "to compel the rest" (paragraph 1). They answer the counterclaim that people will not change, but only by force, and they prove nothing about the savings. Their growing extremes, from a tax of "a louis per window" to "let cannon be fired in every street, to wake the sluggards" (paragraph 5), signal that the letter is satire, poking fun at late sleepers. Rubric: 2 points for explaining that the rules are proposals, not evidence, and connecting them to the satire, with evidence; 1 point for one of these; 0 points otherwise.
Question 19 of 20 · Short Answer
Franklin's calculation covers only "the six months between the 20th of March and the 20th of September." Using Passage 1 as well as Passage 2, explain why he chooses these months, and whether the choice makes his estimate stronger or weaker.
Model answer: In Passage 1, Franklin reads in the almanac that the sun would "rise still earlier every day till towards the end of June," so these are the months when the sun rises earliest and the most candle hours could be saved. Choosing them makes the estimate stronger for those months, because his supposition of "six to eight hours before noon" fits them best. It also makes the argument more careful than it could have been, since he does not stretch the same numbers over months when the sun rises later. Rubric: 2 points for a reason for the choice and an evaluation of its effect, with evidence from both passages; 1 point for one of these; 0 points otherwise.
Question 20 of 20 · Short Answer
Evaluate Franklin's argument as a whole (Passages 1-3). Is the reasoning sound, and is the evidence relevant and sufficient to support his claim that Paris could save "An immense sum"? Write a paragraph with at least three pieces of evidence.
Model answer: Franklin's argument is well built but weakly supported. His evidence that the sun gives light at sunrise is relevant and sufficient: he "saw it with my own eyes" and repeated the test. But the savings depend on suppositions he never proves: "one hundred thousand families," half a pound of candles an hour for every family, and seven hours a night, which assumes everyone sleeps until noon. The arithmetic is right, but a correct calculation from guessed numbers is not sufficient evidence. His answer to the counterclaim is a belief and a set of forced rules, not evidence. Because the letter is satire, these weaknesses are partly the point: Franklin makes a serious idea, using daylight instead of candles, look as silly as the habits he is teasing. Rubric: 2 points each for judging the reasoning, judging the evidence's relevance and sufficiency, and supporting both with at least three quotations (6 points); 1 point each when a part is present but unsupported.
0 of 20 answered · 0 correct
06
Frequently Asked Questions
10 Questions
What does RI.7.8 mean?
It means seventh graders trace an argument, following it from the main claim to the specific claims and the reasons and evidence behind each, and then evaluate it. The standard asks them to assess "whether the reasoning is sound and the evidence is relevant and sufficient to support the claims."
What is the difference between relevant and sufficient evidence?
Relevant evidence connects to the claim it supports; sufficient evidence is enough, and strong enough, to convince a careful reader. One friend's opinion of a new restaurant is relevant to a claim that the restaurant is good, but it is not sufficient to show what most diners think. Evidence has to pass both tests.
What does it mean for reasoning to be sound?
Reasoning is sound when each step follows from the one before and the starting ideas are true. It fails when a step does not follow, when a writer jumps from one case to everyone, or when an argument rests on an assumption the writer never proves. Clever steps built on a false starting idea are still unsound.
How is RI.7.8 different from RI.6.8?
RI.6.8 asks students to trace and evaluate an argument by telling apart claims that are supported by reasons and evidence from claims that are not. RI.7.8 adds two judgments: whether the reasoning is sound, and whether the evidence is relevant and sufficient.
How is RI.7.8 different from RI.8.8?
In grade 8, students delineate (lay out) and evaluate an argument with the same tests, and they must also recognize when irrelevant evidence is introduced. RI.7.8 already asks whether evidence is relevant, so seventh graders get a head start on that skill.
Why use a funny text like Franklin's to teach argument?
Because the joke only works if readers follow the argument. Franklin builds a real chain of claims, evidence and a calculation, and students who trace it can see exactly where it leans on guesses. Satire rewards careful evaluation: noticing which claims are absurd is part of judging the reasoning.
Can an argument have correct math and still be weak?
Yes. A calculation can be done perfectly and still start from guessed numbers. Franklin's multiplication is correct, but the number of families, the candles each one burns and the hours they sleep are his suppositions. Students should check both the arithmetic and where the numbers came from.
What are common mistakes on RI.7.8 questions?
A common mistake is judging an argument by whether you agree with it rather than by its support. Others are treating a writer's confidence as evidence, counting any fact as relevant, and summarizing the text instead of evaluating it. Asking "Which claim does this support, and is it enough?" helps with all of these.
How is RI.7.8 assessed?
Usually with a short argument and questions such as "Which evidence supports the writer's claim?", "Which statement is not relevant?" or "Is the evidence sufficient?" Written responses ask students to trace an argument and evaluate one claim, with quotations from the text.
How can parents help with RI.7.8 at home?
Look at an advertisement, a review or a letter to the editor together. Ask your child what the writer wants you to believe, what reasons and evidence are given, and whether that evidence is enough to convince someone who disagrees.
07
Related Standards
5 standards
These standards connect to RI.7.8: prerequisites to review first, parallel standards at the same level, and next steps that build on it.
Before this lesson
RI.6.8Prerequisite
Trace and evaluate an argument, telling supported claims from unsupported ones