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A worksheet of textbook questions can now be photographed, pasted into a chatbot and answered in seconds. Banning AI is hard to enforce and catching it is harder. The better option is to change what homework asks for, so a pasted answer is not a finished answer.
Why does it matter if AI does the homework?
Homework exists to make the student practise, and AI can do the practice for them. In a field experiment published in PNAS, Bastani and colleagues gave nearly a thousand high school maths students access to GPT-4 during practice sessions.
With a standard ChatGPT-style interface, practice grades rose 48%, but when access was removed those students scored 17% lower than students who never had it (PNAS, 2025). The authors describe students using the AI as a crutch. A second version with prompts designed to protect learning largely removed that harm.
Detection is not a reliable fallback. In a study in Patterns, seven AI detectors labelled on average 61.3% of 91 human-written TOEFL essays by non-native English speakers as AI-generated, and all seven agreed on 19.8% of them. The same detectors classified US eighth-graders' essays accurately, so the false alarms fall on second-language writers, as many students in India are.
What makes homework hard to hand to AI?
Four features do most of the work, and each is also good teaching.
A prediction before the result. The student commits, in writing, to what will happen and why, then checks. Harvard researchers Crouch and colleagues found that students who only watched a classroom demonstration understood the concept no better than students who did not see it, while students who predicted the outcome first showed significantly greater understanding.
Personal data. Measurements from the student's own home, body or week. A chatbot can explain the method but cannot know the numbers.
An oral follow-up. A two-minute conversation where the student explains one step aloud. Explaining is itself a learning tool: in Chi and colleagues' 1994 study, 14 eighth-graders prompted to self-explain each line of a text on the circulatory system gained more from pretest to post-test than 10 who read it twice.
Process evidence. The rough work, crossed-out first attempts and a line on what changed, not only the final answer.
What does AI-resilient homework look like?
Each example combines at least two of the four features; most use the predict-then-check step from the Crouch study.
Physics, Class 9: Before dropping a flat sheet of paper and the same sheet crumpled into a ball, write which lands first and why. Drop both three times and note where your prediction was right or wrong.
Maths, Class 8: Take your family's last electricity bill. Work out the cost per unit, then predict next month's bill if usage rises by a fifth. Cover the account number and address before you bring it in.
Biology, Class 10: Measure your resting pulse, then again after two minutes of skipping, for yourself and two family members who want to join in. Predict who will recover fastest, then time the return to resting rate.
Statistics, Class 11: Log how long your journey to school takes for five days. Predict whether the mean or median will be larger, then find both and say which better describes a "normal" day for you.
Chemistry, Class 10: Before testing, rank three kitchen substances from most acidic to most basic, with a reason for each. Test them with the indicator your teacher gives, then explain any surprise.
Any subject, JEE or board revision: Hand in your first attempt at three problems in pen, corrections in a second colour, and one line per problem on what the mistake was. Be ready to explain one correction aloud.
For credit and school rules, see who owns AI-made school work. Before typing family data into a chatbot, check what personal information not to share with an AI chatbot.
How do you run a two-minute oral follow-up?
This turns the self-explanation idea from the Chi study into a quick check. Pick one answer from the homework and ask, in order:
"Walk me through how you got this line."
"What did you predict, and what surprised you?"
"If I change this number, what happens to your answer?"
A student who did the work can usually answer, even with a wrong result. A student who pasted it is more likely to stall. If so, ask them to redo one step in front of you. Teachers can turn the same three questions into quick end-of-class checks with our guide to AI-made exit tickets.
How should AI help fit into homework?
AI does not have to be shut out. The question is whether it does the thinking or prompts it. If your child uses an AI tutor after making a prediction, it should ask before it tells. Fermi's AI tutor decides whether to explain, ask or show, and checks understanding as it goes, so the student still has to do the reasoning.
Try one of the six examples this week, and add the three oral questions to the next homework you check.
