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Page 7 of 8~116 min topic

Why AI makes mistakes

Investigate a fake school history fact

Treat a suspicious claim like a mystery to solve: claim → clues → checks → verdict.

~16 min this pageWorked example

1Try it yourself

Simulation game

Hallucination hunt

Stamp each claim: Trap or Trust. Confident voice ≠ true.

Quiz show

SOUNDS SURE

“Sydney is the capital of Australia.”

Case 1/4 · score 0

2Learn the idea

Read

Investigation steps

See it

Why fluent answers can still be wrong
01Predict ≠ lookupSounds like an answer
02Web is messyFacts + fanfic mix
03No embarrassmentCan sound sure
04Prompt trapAsked to invent detail

Confidence is a tone — verify before you act

1. Isolate the claim. Split the sentence into checkable pieces:

  • Building opened in 1924?
  • Famous inventor visited?
  • Donated 200 books?

Specificity helps you test — and also helps hallucinations look fancy.

2. Gather primary clues. Prefer school-owned sources: handbook, district site, cornerstone plaque photo, librarian, yearbook intro, teacher who knows campus history.

3. Run fast falsifiers. One solid contradiction can sink a claim. 1987 opening year falsifies 1924. You do not need a full research paper to reject the invented visit.

4. Separate “maybe colorful” from “okay to present.” Even if a donation story might exist somewhere, you still need a findable source before it goes on a slide. No source → no slide.

5. Write the verdict. Example: “Rejected: opening year contradicts school materials. Inventor visit unsupported. Use handbook date only.”

Read

What you learn by doing it

Hallucinations often bundle one true-ish thread (schools have libraries) with invented ceremony. Investigation trains you to unbundle. It also teaches you that “sounds like a plaque” is not a plaque.

Save your method. Next time the claim is a fake club founding date or a made-up “district record,” you already know the dance.

Read

Worked micro-script

Claim: “Opened in 1924 after an inventor visit and 200-book donation.”

Check A — Opening year: handbook / plaque / district facilities page → 1987. Falsified.

Check B — Inventor visit: librarian + local history page + yearbook intro → no support. Unsupported.

Check C — 200 books: charming detail with no paper trail → discard.

Replacement slide line: “Our building opened in 1987. The library still grows through school and community donations — here is what the handbook says about its mission.”

Notice the replacement stays interesting without cosplay history. Audiences prefer true stories they can trust.

Read

Transfer the skill

Use the same card for a viral “our town was founded when…” meme, a fake club origin story, or an invented science fair “local data point.” Investigation is a reusable civic skill, not only an English-class chore.

Go deeper

Before you start

Why this matters

For a short local-history slide, AI writes: “Your middle school building opened in 1924 after a visit from a famous inventor who donated the library’s first 200 books.” It sounds proud and specific. Your principal’s welcome packet says the building opened in 1987. Time to investigate.

In the wild

See how this idea shows up as a product and a company — then come back to the lesson. Skills transfer across vendors.

Check your understanding

Page assessment

Answer from memory. Completion is saved from this evidence, not from opening the next page.

1. Why should you split a flashy history sentence into separate claims?
2. Name two school-owned sources useful for campus history checks.
3. What is a “fast falsifier”?
4. If a story is charming but unsourced, should it go on a graded slide? Why or why not?
5. Write a one-line template for an investigation verdict.

All responses are required.