Page 5 of 8~116 min topic

Why AI makes mistakes

Ground the answer: notes vs the open web

Grounding means tying answers to evidence you can point to — your notes, a handout, a trusted page — not vibes.

~14 min this pageHow tools help

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.

2Learn the idea

Read

Grounded vs floating answers

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

A floating answer is built from patterns in training data or random web-like guesses. A grounded answer is constrained by material you provide or a source you control.

For school, grounding often means:

  • Pasting the exact paragraph from your notes (with teacher permission rules in mind)
  • Asking questions against a worksheet PDF you attach
  • Comparing AI output line-by-line to the handout

If the tool cannot see your notes, it cannot “remember” Friday’s discussion. It can only sound like a student who read a different summary.

Read

Class notes vs web summaries

Web summaries can help when the task is general background. They fail when the task is “what we covered.” Teachers grade your class’s framing, vocabulary, and emphasis.

A practical split:

| Need | Better ground | |------|----------------| | Review our themes | Your notes / slides | | Understand a word | Dictionary + notes | | Brainstorm essay angles | AI + your evidence list | | Check a quote | The book in front of you |

Retrieval (finding the right chunk of text) only helps if the right chunk is available. No notes in → no classroom truth out.

Read

Make grounding visible in the prompt

Tell the model the rules out loud: “Use only the notes below. If the answer is not in the notes, say ‘not in notes’ and stop.” Then paste a short excerpt — not your whole notebook if it contains other students’ info or private comments.

Grounding also means you retrieve: open the slide deck, find the bullet, and compare. Tools that “search the web” are still not searching your classroom unless you give them classroom text. A web-grounded answer can be accurate about the book in general and still wrong about Ms. Patel’s emphasis.

When classmates swear the chatbot “remembers our discussion,” translate that claim: it produced a plausible discussion-shaped answer. Plausible is not attendance.

Read

Classroom honesty

If your teacher allows AI for brainstorming, show your grounded notes trail: what you pasted, what you kept, what you verified. That transparency builds trust and protects you if a floating claim sneaks in.

Go deeper

Before you start

Why this matters

You upload nothing and ask, “What did Ms. Patel say about themes in The Giver?” The chatbot invents a tidy theme list. Later you open your class notes: two themes match, one is totally new, and a key quote is wrong. The model answered from general book chatter online, not from your classroom.

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. What does “grounding” mean in plain words?
2. Why can’t AI reliably recall what your teacher said last week?
3. When are web-style summaries okay, and when are they risky for classwork?
4. What should the model say when your notes don’t contain the answer?
5. Give one example of grounding with a handout or PDF.

All responses are required.