Using Evidence: Frame, Quote, Explain
Evidence never speaks for itself; you must introduce it, present it accurately, and explain how it supports the claim. · 12 min
Folio 9 taught you to choose evidence that actually fits the claim. Choosing well is not the end of the job. The right quotation, dropped into a paragraph on its own line, still does no work — a fact cannot argue, and a quotation cannot explain itself. That work is yours. Every piece of evidence needs three moves around it: a frame that introduces it, an accurate presentation of the evidence itself, and an explanation that ties it back to your claim. Miss the first and the evidence arrives with no introduction; miss the last and the reader never learns why it was there.
Guess before you learn
A paragraph reads: “Homework can be stressful. ‘Sixty percent of teens report losing sleep over assignments.’ Schools should assign less.” What is its main problem?
The fact may be relevant, but it sits between two sentences doing nothing. The reader is never told where it comes from, and never told what it proves. A number cannot argue on its own — you have to frame it, then say what it shows. That missing work, not the quotation's length, is the flaw, and it is the most common one in student paragraphs.
9–12
3–5
When you use a fact, put words around it. First, say where it comes from. Then give the fact. Then say what it proves. Bare fact: It rained two inches. Better: The weather page said it rained two inches — that is why the field flooded. The middle fact is the same; the words around it do the work.
6–8
Three moves turn a fact into evidence. Frame it: introduce the source and set up why it is coming. Present it accurately: quote the exact words, or paraphrase them fairly. Explain it: state, in your own words, what it shows and how it supports your claim. Frame, present, explain — in that order.
Of the three, writers skip the explanation most. It feels obvious once you have found the perfect quotation, so you set it down and move on. But what is obvious to you, holding all your reasons, is invisible to a reader holding only the sentence. The explanation is where the argument actually happens.
9–12
The frame does two jobs at once. It attributes — names the source, so the reader can weigh and trace it — and it orients, telling the reader what to watch for before they read the evidence. In a 2019 survey of 2,000 teenagers, sixty percent reported... both credits the source and primes the reader to take the number as evidence about how common the problem is.
The explanation is where inexperienced and experienced writing part ways. A dropped quotation asks the reader to reconstruct your reasoning; an explained one hands it to them. Name what the evidence shows, then connect that to the paragraph's claim. The test: could a reader who skipped the quotation still follow your argument from the frame and explanation alone?
K–2
Point to your picture and tell about it. Say what it shows before, and why it matters after. “Here is a photo. His paws are muddy. So he ran outside.” The photo needs your words on both sides.
Undergrad
Integrating evidence is an act of subordination: the source serves your argument, not the reverse. Signal phrases — as the report notes, Ellison argues — do grammatical and rhetorical work, embedding the borrowed material inside your own sentence and marking its status as evidence. The verb inside the frame — observes, concedes, claims — quietly characterizes the source's stance and should be chosen on purpose.
The explanatory move — often called the warrant, after Toulmin — makes explicit the inference from evidence to claim. It is the step most often left tacit, and tacit warrants are where arguments hide their weakest links. Forcing yourself to write the connecting sentence exposes whether the evidence actually licenses the claim, or only sits near it.
Postgrad
In Toulmin's model the datum supports the claim only through a warrant — a general licence for the inference — itself often supported by backing. Prose that drops quotations is, in these terms, asserting datum and claim while omitting the warrant, leaving the reader to supply the inferential rule. Much of what reads as unpersuasive writing is exactly this: warrants unstated, or on inspection unstatable.
Framing also governs reported discourse: direct quotation asserts the token utterance, indirect quotation asserts only its content, and the choice interacts with the writer's evidential stance. The signal-phrase verb encodes that stance — demonstrates presupposes the claim's truth, alleges withholds it — so integration is never neutral transmission. Competent use of evidence is thus at once a semantic, a rhetorical, and an epistemic operation.
signal phrase
The few words that introduce a piece of evidence and name its source — the report found, as Douglass writes. It frames the evidence before the reader meets it.
Why is this true?
Why is the explanation the move writers skip most?
Because once you have found the perfect quotation, its meaning feels obvious — to you, holding all your reasons. The reader holds only the sentence. The explanation supplies the reasoning you can no longer see is missing.
Build the three moves around one quotation — the steps fade as you master them
According to the county air-quality report,
average particulate levels fell 30 percent in the year after the factory closed.
That drop is the clearest sign the closure, not the weather, cleared the air.
Frame, present, explain: with that habit, a fact stops being a decoration and starts being an argument. You now have the parts of a paragraph and the parts of an essay's proof. The next unit steps back from the paragraph to the whole — how to arrange all these claims into an order that builds toward your thesis.
Practice — new ink and old, interleaved
1.You want to show what it felt like to live through the 1977 blackout. Which kind of evidence fits best?
2.Claim: the tutoring program raised reading scores. Which fact is off-target?
3.Claim: the new streetlights made the intersection safer at night. Order these facts from most relevant to that claim to least.
- Nighttime collisions at the intersection fell by half after the lights went in
- Drivers report seeing pedestrians sooner at the crossing
- Foot traffic through the intersection rose after the lights went in
- The lights use energy-efficient bulbs the city likes
4.Your claim is about what a poem's final line actually says. In one sentence, name the kind of evidence you need and why.
5.Claim: the park has made the block safer. Evidence: reported thefts fell by a third. Write the one-sentence explanation that connects them.
6.A paragraph ends on a quotation and then starts a new topic. Which move is missing?
7.Claim: the tutoring program raised graduation rates. A writer offers: two hundred students signed up. In one sentence, why does that fact not support the claim?