Explain It with the Feynman technique
Choose your audience — a 5-year-old, a friend, or a professor — and explain a concept in your own words. Get instant feedback on what you got right, what you missed, and how deep your understanding really goes.
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AI feedback
Trusted since 2011
1.77 million+ students
Kibin has helped students work through difficult material for over a decade. Explain It puts one of the best-studied ideas in learning science — teach to learn — directly into your study flow.
How Explain It works
1. Upload your material
Add a PDF, paste notes, drop in a YouTube link, or upload a recording. Kibin reads it and builds your concept bank.
2. Pick your audience
Choose who you're explaining to — a 5-year-old, a friend, or a professor. Each level demands a different kind of understanding.
3. Write and get graded
Type out the concept in your own words. Kibin scores your accuracy, depth, and consistency — and pinpoints gaps in understanding.
The audience sets the bar
Explaining something to a 5-year-old demands plain language and everyday analogies. Explaining it to a professor demands precise terminology and real depth. Kibin grades each level differently — you choose what to practice and how hard to push.
Simple language, concrete analogies, no jargon. If a kid couldn't follow it, simplify.
Casual but accurate — explain the why, not just the what. No need to over-define terms.
Precise terminology, full mechanism, edge cases addressed. No hand-waving.
Cognitive dissonance happens when two beliefs conflict. Leon Festinger showed that people change their attitudes to reduce psychological discomfort — like justifying a bad purchase after you've already made it...
Core concept correct
Missing dissonance-reduction mechanisms
No contradictions found
You described the phenomenon but didn't explain how people resolve dissonance — attitude change, behavior change, or rationalization.
Know exactly what you missed
Kibin's feedback checks accuracy, depth, and consistency separately, then flags specific gaps in your explanation so you know precisely what to revisit. You're not just learning that you were wrong — you're learning what you missed and why it matters.
Prove you understand it
Active recall — forcing yourself to retrieve information rather than re-read it — is one of the most studied improvements to learning in cognitive science. Explain It brings the most demanding form of active recall to your material: you don't just recall an answer, you have to build and defend one.
Explain concepts from any source
Upload your source material and Kibin builds a concept bank ready for Explain It sessions.
Textbook chapters, lecture slides, research papers — Kibin pulls the key concepts.
Paste typed notes or a study guide and practice explaining every concept.
Drop in a lecture URL and Kibin extracts the ideas you need to be able to explain.
Upload a recorded lecture or voice notes and build your concept bank from what was said.
Complete your Study Pack
Explain It works best alongside Kibin's other active recall tools — all built from the same upload.
Your questions, answered
What is the Feynman technique?
The Feynman technique is a learning method built on one idea: if you can't explain something simply, you don't fully understand it yet. You write out a concept as if teaching someone else, then use the gaps in your explanation to guide your next round of studying. It's one of the most well-researched approaches to deep learning in cognitive science — sometimes called the teach-back method or retrieval practice through explanation. The Kibin app brings this method to your study material and grades your explanation in seconds.
How is Explain It different from Kibin's Quiz and Flashcards?
Quiz and Flashcards test whether you can recognize or recall a correct answer. Explain It asks you to write the answer yourself, in your own words — the harder kind of active recall. Use all three tools together in a Study Pack for complete coverage of a topic.
What does Kibin's feedback cover?
Kibin checks three things: accuracy (did you get the concept right?), depth (did you explain the why, not just the what?), and consistency (does your explanation stay consistent throughout?). It also flags specific gaps — ideas you left out or described incorrectly — so you know exactly where to go back.
Can I use Explain It for free?
Yes, you can try Explain It for free. Unlimited sessions are included with Kibin Pro.
See what you actually know
Put the Feynman technique to work on your material — in about a minute.
Start explaining →