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.
1Try it yourself
Simulation game
Hallucination hunt
Stamp each claim: Trap or Trust. Confident voice ≠ true.
Quiz show
“Sydney is the capital of Australia.”
2Learn the idea
Read
Grounded vs floating answers
See it
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.
Related lessons
Check your understanding
Page assessment
Answer from memory. Completion is saved from this evidence, not from opening the next page.
All responses are required.