Following a story back to where it started · DCC Kids

💡 The big idea

When something interesting or surprising gets shared online — a news headline, a health claim, a "did you know" fact — the version you see has usually already passed through dozens of people. Each time it's shared, it gets a little more simplified, a little more dramatic, and a little further from where it started.

SIFT is a short, four-step method for checking whether a claim is worth trusting — and finding out where it actually came from. It takes about 60 seconds when you know how.

The most important habit: leave the page. Most people check claims by reading more of the same page — looking for more detail in the same article. That doesn't work. The way to check a claim is to leave that page and look for independent sources. This is the single hardest habit to build, and the most valuable one.

🔍 The SIFT method

Stop

Before you read, share, or react — pause. Notice if the headline or claim is making you feel a strong emotion. Strong emotions are designed to make you share before you think.

Investigate the source

Who published this? Is it a news organisation? A blog? A social media account? Leave the page and look up the source before reading the content itself.

Find better coverage

Search for the same claim from other sources. Are reputable organisations covering it? If the story is only on one site, that's a signal worth noting.

Trace claims to their origin

Find the original source of the claim — the actual study, the actual quote, the actual event. Often what's being shared is a simplified or distorted version of the real thing.

📋 SIFT quick reference (print this)

Stop — pause before you share or react. Notice strong emotions.

Investigate the source — leave the page and look up who published this.

Find better coverage — search for the same claim from other sources.

Trace to origin — find the actual study, quote, or event the claim came from.

🔬 Worked example — step by step

Let's SIFT a claim that's taught in many schools and shared millions of times online. Work through each step together before reading the result.

The claim: "The Great Wall of China is the only man-made structure visible from space with the naked eye."

Stop This claim has been repeated in textbooks and classrooms for decades. It feels credible — which is exactly when SIFT is most useful. Is this claim worth checking? (Yes — it's widely repeated and believed.)

Investigate the source Where does this claim appear? Most versions don't cite any specific source. That's already a signal. Who would actually know the answer? (Astronauts who have been to space, and space agencies like NASA and the Canadian Space Agency.)

Find better coverage Search "Great Wall of China visible from space NASA." What do the space agencies say?
NASA states directly that the Great Wall is not visible from space with the naked eye. Chinese astronaut Yang Liwei — the first Chinese person in space — confirmed he could not see it. Canadian astronaut Chris Hadfield has addressed the same question. All agree: the claim is false. Multiple independent credible sources agree: not visible from space.

Trace to origin Where did this claim start? Researchers have traced it to a 1932 American school textbook written before anyone had ever been to space. It was stated as a fact, repeated in other textbooks, and spread for decades — entirely without evidence, because no one had yet been to space to check. Origin: 1932 textbook claim — made up before space travel existed.

What SIFT found: A claim repeated in classrooms for 90+ years — traced back to a pre-space-age textbook that made it up. The claim is false. The origin is traceable. This is what SIFT is for.

⏱ 60-second source trace

Now try it. Set a timer for 60 seconds. Read the claim below and work through SIFT together. If you have internet access, search it. If not, discuss what you'd look for and why.

Your turn: SIFT this claim

"We only use 10% of our brains."

Stop. What's your first reaction? Does this seem plausible?
Investigate. Who is making this claim? Can you find a specific original source?
Find better coverage. What do neuroscientists, universities, or science organisations say about it?
Trace. Where did this idea come from originally? Can you find out?

The answer (read after you've tried): The "10% of brains" claim is false. Brain imaging studies show activity across virtually all brain regions. The myth likely traces to misquotations of early 20th-century psychologists and self-help culture — not neuroscience. It spread because it's a flattering idea: the suggestion that most of your potential is untapped. That emotional appeal is part of why it persists.

🎯 When to use SIFT

You don't need to SIFT everything. The question is: does this claim matter?

✅ SIFT this

Health or medical claims you're about to act on
News stories that make you angry or very excited
Facts you're about to share with someone else
Information that could affect a decision
Claims that seem too surprising to be true

⬜ Lower priority

Entertainment content you're not going to share
Opinions clearly labelled as opinions
Trivial facts where being wrong doesn't matter
Content from sources you've already verified and trust

You don't have to check everything. The goal is to build the habit of pausing before sharing — and to know how to check when it matters. Even doing S (Stop) before every share is a meaningful improvement over not pausing at all.

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The passphrase method for ages 10–12.

For caregivers

Why this skill matters — the research

Mike Caulfield's SIFT framework (2019) was developed specifically to address the finding that traditional "read carefully and evaluate" approaches to media literacy are ineffective. Research from the Stanford History Education Group (SHEG) and the RAND Corporation's Truth Decay project shows that most people — including experts — are poor at evaluating sources when reading within a page. The most effective strategy is lateral reading: leaving the page immediately and looking for independent information about the source before reading the content.

At ages 10–12, children are developmentally entering formal operational thinking (Piaget), which makes source reasoning possible in a way it wasn't at younger ages. They can hold two representations simultaneously: "what this page claims" and "what other evidence shows." SIFT is a structured way to develop this capacity before misinformation habits solidify.

The worked example and 60-second challenge are designed to give children the experience of SIFT working — finding a claim false with traceable evidence. Without this experience, children often accept SIFT as a concept but don't transfer it to practice.

For library programme facilitators:
The worked example (Great Wall claim) and the 60-second challenge (10% brain myth) are fully functional as printed paper activities — no internet required. If you have library internet access, the challenge becomes a live search activity. If you don't, discuss the steps verbally: "What would you search? What source would you trust?" The reasoning process matters more than the search itself.

Important: some library content filters may block fact-checking aggregators (Snopes, PolitiFact, FactCheck.org). Pre-check or print the relevant fact-check pages before your session. MediaSmarts Canada resources (mediasmarts.ca) are generally available on library networks and provide excellent Canadian examples.

Sources

Caulfield, M. (2019). SIFT (The Four Moves). Pressbooks. (lateral reading and source verification)
Stanford History Education Group. Civic Online Reasoning. sheg.stanford.edu
RAND Corporation. Truth Decay: An Initial Exploration of the Diminishing Role of Facts. 2018. rand.org
Breakstone, J., Smith, M., Wineburg, S., et al. (2021). Students' civic online reasoning: A national portrait. Educational Researcher, 50(8), 505–515.
MediaSmarts Canada. Critical Thinking and Media Literacy. mediasmarts.ca
NASA. "Is the Great Wall of China the only man-made structure visible from space?" nasa.gov (on record: no)