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You have a short science talk on Friday, and your plan is to read your slides one more time. A better plan is to say the talk out loud to a listener who asks questions. At 10 pm, when nobody else is free, an AI chatbot can be that listener. The AI asks the questions. You make sure every fact you say is true.
Why rehearse a science talk out loud instead of rereading it?
Explaining to an audience can push you to connect ideas, not just repeat them. Logan Fiorella's 2023 chapter on research into learning by teaching, published by a division of the American Psychological Association, brings together several findings that apply to presentations:
In experiments by Fiorella and Mayer, college students who recorded a video lesson on the Doppler effect for a fictitious student did best on a delayed comprehension test, compared with students who only prepared to teach.
In a study by Koh and colleagues, students who taught from memory did better on a delayed test than students who taught with their notes in front of them.
A review by Kobayashi of 28 studies found a medium average benefit when students both prepared to teach and actually taught.
Answering a listener's questions can help too, but listeners rarely ask the deep, conceptual questions that make you think harder.
That is where an AI helps. You can tell it to keep asking the "why" questions a curious classmate might ask.
How do you practise a class presentation with AI?
Use this five-step plan, and keep each round short enough to repeat.
Write your outline from your textbook first. Three or four points, in your own words. The AI comes after this, not before.
Explain it out loud without notes. Use voice mode, or say it aloud and then type what you said. Then add: "This is my class talk. Don't rewrite it. Tell me which sentence a Class 10 student would find confusing, and why."
Ask for classmate questions. "Act as a curious classmate. Ask me five questions about my talk, one at a time, and wait for my answer each time. Include at least two 'why' questions."
Answer each one aloud before you read the AI's reaction. If you can't answer, mark it. That is a gap in your understanding, not in your slides.
Give the talk once more from memory and check that the confusing sentence is gone.
If a question shows you never really understood a step, stop and learn it properly. Fermi's AI tutor notices where you are stuck and decides whether to explain, ask or show, so you go back to rehearsing knowing what you missed.
What questions might a classmate ask about your topic?
For example, say your talk is "Why is the sky blue?", from the scattering section of the NCERT Class 10 Science chapter on the human eye and the colourful world. The chapter says red light has a wavelength about 1.8 times greater than blue light, and that fine particles in the air scatter the shorter wavelengths more strongly.
Questions an AI classmate might ask, and where your answer comes from:
"Then why does the sky look dark to people flying very high?" The same NCERT section answers this: scattering is not prominent at such heights.
"Why are danger lights red?" Also in NCERT: red is scattered least by fog or smoke, so it can be seen from far away.
"Violet has an even shorter wavelength. Why isn't the sky violet?" Your chapter doesn't cover this. A good answer is: "That goes beyond our textbook. I'll check with our teacher." Don't repeat an answer just because the AI said it confidently.
For the talk itself, see our guides to storytelling in science presentations and public speaking for shy students.
How do you check the facts an AI adds to your talk?
AI chatbots can sound sure and still be wrong. In a 2023 study in Scientific Reports, Walters and Wilder asked ChatGPT to write short literature reviews and checked all 636 references. They found that 55% of GPT-3.5's references and 18% of GPT-4's were fabricated.
Before any AI suggestion goes on a slide, run this checklist:
Every number is in your textbook or in a source you opened yourself.
Every name and quote links to the original page, not to the chatbot.
Every "fun fact" you can't find in a real source gets cut.
Anything beyond your syllabus is left out, or checked with your teacher first.
The AI's help is acknowledged if your school asks for that. Here is how to cite AI in a school project.
When a question exposes a concept you only half know, the Fermi Concept Library has a lesson for every concept in physics, chemistry, biology, mathematics and computing, so you can fill the gap before Friday.
Tonight, write your outline from the textbook, give the talk once to an AI classmate, and check the one fact you are least sure of.
