HomeCasa Feynman technique: check whether you really understand a concept
Explain a concept in your own words and get a Feynman-style review: what is right, gaps, unexplained jargon, beginner questions and a guided second attempt. Designed for ChatGPT, Claude, Gemini and Microsoft Copilot. It includes 4 customizable variables and you can copy it for free in one click.
Beginner · Text · Pending editorial review
Prompt
Act as a teacher who applies the Feynman technique: the student explains a concept in plain words and the teacher pinpoints where their understanding breaks down.
Context:
- Concept: {{concept}}
- Subject: {{subject}}
- My explanation: {{explanation}}
- Imagine I am explaining it to: {{listener}}
Deliverables:
1. What works: the correct, well-explained ideas in my text.
2. Gaps and errors: quote the exact sentences where I am wrong, incomplete or skip a logical step, and explain what is missing in each case.
3. Unexplained jargon: technical terms I used without defining that the listener would not understand.
4. Three questions that listener would ask that my explanation does not answer.
5. A 1-5 score for accuracy, clarity, completeness and use of examples, with one line of justification each.
6. Hints for a second attempt: tell me what to revisit in my notes, without writing the correct explanation for me.
Rules:
- Do not give me a full model explanation in this first reply. When I send my second attempt, compare it with the first, tell me what improved and only then offer a short model version.
- Do not accept incorrect statements just because they are simple; simplifying is not the same as being wrong.
- If the concept is understood differently across schools of thought, say so. If you need a fact you are not sure about, write [FILL IN].
- If my explanation is too short to assess, ask me to expand it.
Format: numbered sections, in a direct but encouraging tone.How to use it
Write your explanation without looking at your notes, as if you were talking to someone. Read the review, go back to your notes only for the flagged gaps and send a second attempt in the same chat.
Usage example
Concept: supply and demand · Subject: high school economics · Listener: a 12-year-old.
Sample output
1. What works
You rightly sense that price responds to what people want to buy: when something becomes popular, its price tends to go up. That's a solid starting point.
2. Gaps and errors
- "when the price goes up companies make less of it" → This is the main problem. Think about it from the company's side: if it can sell each unit for more, does it want to produce less or more?
- You blend two different things: people wanting more of something (a change in demand) and what happens because the price changes. Cause and effect need to be separated.
3. Unexplained jargon
A 12-year-old would follow your words, but the idea of equilibrium is missing: where do buyers and sellers "meet"?
4. Questions the 12-year-old would ask
- So does the price just keep going up forever?
- What happens if there are too many toys and nobody wants them?
- Who actually decides the price in the end?
5. Scores
| Criterion | Score |
|---|---|
| Accuracy | 2/5: company behavior is reversed |
| Clarity | 4/5: simple language |
| Completeness | 2/5: no equilibrium |
| Examples | 2/5: none concrete |
6. For your second attempt
Go back to the supply curve in your notes and what its slope means. Try a concrete example, such as concert tickets. …
Key facts
- Category
- Education & study · Simple explanations
- Output type
- Text
- Level
- Beginner
- Designed for
- ChatGPT, Claude, Gemini and Microsoft Copilot
- Verified in
- Pending editorial verification
- Variables
- Concept, Subject, Your explanation and Imaginary listener
- Language
- English
- Price
- Free, no sign-up
- Updated
- Nov 7, 2026
Frequently asked questions
What is the Feynman technique?
Explaining a topic in words simple enough for someone with no background to follow. The places where you get stuck or fall back on jargon are exactly where your understanding has holes.
Why does it not give me the correct explanation right away?
Reading a good explanation feels like understanding but does not prove you can explain it. Rebuilding it yourself from the hints is what makes the learning stick.
What is this prompt for?
Explain a concept in your own words and get a Feynman-style review: what is right, gaps, unexplained jargon, beginner questions and a guided second attempt.
Which AI tools does it work with?
It is designed for ChatGPT, Claude, Gemini and Microsoft Copilot. We have not verified it in these tools yet, so results may vary between them.
How do I customize the prompt?
Click “Customize” and fill in the variables (Concept, Subject, Your explanation and Imaginary listener). The text updates instantly and you can then copy it in one click. Values are stored only in your browser.
Do I need experience to use it?
No. It is a beginner-level prompt: just fill in the details and paste it into your AI tool.
Is this prompt free?
Yes. Every HomeCasa Prompts prompt is free, with no sign-up or subscription. You can also use them in professional projects.
Can I trust the AI output?
Treat it as a high-quality draft: always check data, figures and important claims before publishing or making decisions.