Feynman Technique reveals if you really understand — or just memorized words. Revaldo AI shows exactly what is missing in your explanation.
ไม่มีบัตรเครดิต · 1 Feynman/week free · All subjects.
Nobel Prize winner Richard Feynman said: if you can't explain it simply, you don't really understand it. It's that simple.
You can say the right words in the right order — but don’t understand what they mean.
If you can explain it to a 5-year-old — then you really understand it.
Revaldo shows exactly what is missing in your explanation — point by point.
That's the whole Feynman Technique. Nothing more complicated than that.
The same Feynman view as in the app. Everything is pre-recorded — no real AI calls in the demo. Click รับข้อเสนอแนะแบบ AI to see the analysis.
In the app, you write yourself — here you see a finished example. Register to run Feynman with your own material and get real AI Analysis.
PDF → AI → แบบทดสอบ → Feedback. Four steps — no manual question creation.
PDF, Word, PowerPoint, or pasted text. Any subject and level.
Multiple choice, short answer, essay, or mix. Choose the number of questions (5–30) and difficulty level.
AI analyzes the material and creates questions that test understanding — not just superficial recall.
Answer each question. Get instant scoring and detailed AI feedback on every answer.
Revaldo AI automatically creates quizzes from notes or PDFs. Each answer provides immediate feedback so you learn from mistakes while the concepts are still fresh.
Active Recall and spaced repetition — briefly explained, not a research paper.
Each card forces you to retrieve the definition from memory before you flip it. It's 50–100% more effective than rereading the same text (Roediger & Karpicke, 2006).
Review just before you forget. Difficult cards more often, easy cards less frequently — proven in 8+ peer-reviewed studies. You study less but remember more.
I thought I understood mitosis until Feynman showed that I completely missed anaphase. After three explanations with AI feedback, I passed the cell biology exam with 88%.
Law requires you to justify principles. Feynman on case analysis revealed where I skipped the ratio decidendi — I went from a C to a B+ in five weeks.
History was just dates in my head. Feynman forced me to explain causes and effects — went from failing to a B+ in six weeks.
Organic Chemistry requires an understanding of mechanisms. Feynman on SN1/SN2 revealed that I had only memorized rules — I got 88%, the highest in the study group.
Revaldo AI แบบทดสอบ generate questions from your notes and grade each answer type with detailed explanations — like a teacher, but directly.
PDF, Word, PowerPoint, or pasted text. สร้าง quizzes from lecture notes, textbooks, or study guides in seconds.
Multiple choice with 4 options, short answer questions with 1–3 sentences, and essays graded by AI on a scale of 0–10.
MCQ: explanation per alternative. Short answer: missing details are highlighted. Essay: graded 0–10 with concrete improvement tips — not just right or wrong.
Combine MCQ, short answer, and essay in the same quiz. Interleaving improves application (Rohrer & Taylor, 2007).
See which topics you miss most often. Generate new quizzes focused on weak areas.
แบบทดสอบ work best together with AI แฟลชการ์ด och study planer on a platform.
Upload one PDF, paste your notes, or snap a photo — and Revaldo AI instantly creates every study tool below. No setup. No clicks. Just learn.
Multiple choice, short answer & essay — all auto-generated with instant AI grading.
32 cards created with spaced repetition — review before you forget.
Explain concepts — AI finds every gap in your understanding.
Clean, structured summary of your entire document in seconds.
Ask questions, request explanations, or generate more content from chat.
AI builds a day-by-day schedule that adapts as you learn.
↓ Scroll down to see each tool in detail
Pick any concept. Write your explanation in plain language. Revaldo AI instantly analyses สิ่งที่คุณทำถูกต้อง, what you missed, and what's incomplete — then shows you a model answer.
Not just a red ✗. Revaldo AI tells you exactly what you missed and why the correct answer is correct — so you learn from every mistake in real hourse.
Short answer questions force you to recall from memory — the strongest way to learn. AI checks your answer against the source material and gives specific feedback.
No more waiting days for a teacher to mark your work. Write full paragraphs and get scored immediately — with specific suggestions on what to add or improve.
Revaldo AI creates a clean summary of your uploaded material. Then ask follow-up questions, request explanations, or tell the chat to generate flashcards and quizzes — all from the same conversation.
Tell Revaldo AI your exam date. It builds a day-by-day schedule tailored to your weak areas, available hours and the tools that work best for each topic.
of students re-read the same pages hoping something sticks — even though science has known for decades it's one of the least effective ways to study. You're not the problem. Your method is.
Re-reading feels productive — but without active recall, your brain discards most of it within 24 hours. You need to be tested on the material, not just exposed to it.
You submit and wait days for a grade. By then you've moved on. Revaldo AI gives you instant, specific feedback on every single answer — while the concept is still fresh.
You sit down to study and spend 20 minuteeees just deciding where to start. Revaldo AI tells you exactly what to study, with which tool, and for how long — every single day.
No hidden fees. Start Premium free for 5 days — unlimited Feynman, $0 today.
In-depth guides on every technique, subject and exam type. Written for students, powered by science.
Supported by 8+ peer-reviewed studies. Not marketing — cognitive science.
Generation effect: creating your own explanations leads to better retention than reading prepared answers. Feynman is pure generation.
Revaldo AI gives you quizzes with direct feedback so each testing maximizes learning. 80 % retention, minimal studietid.
Don't wait until you feel confident. Try to retrieve information before you have fully learned it (Kornell & Bjork, 2008).
Three quiz sessions over 3 days provide up to 200% better retention than five quizzes on the same day (Cepeda et al., 2006).
Feedback doubles the benefits of quizzing (Butler, 2010). Read each explanation — not just the score.
Kombinera quiz med AI แฟลชการ์ด och AI แบบทดสอบ for varied retrieval practice.
Fair comparison. Choose the tool that fits how you actually study.
Best for students who wants to avoid manual card creation and study flashcards, quizzes, and study plans on the same platform.
Guides, research, and SEO content for students who want to understand — not just memorize.
Four steps, the science behind it, and how AI enhances the process.
เทคนิคฟeynman is based on a simple idea: if you can't explain something simply, you don't really understand it. Richard Feynman, Nobel Prize winner in physics, used the method to test his own understanding.
Four steps: (1) เลือกแนวคิดหนึ่ง, (2) explain it simply without notes, (3) identify gaps where you get stuck, (4) study the gaps and try again. Each cycle deepens understanding.
Self-explanation — creating explanations to yourself — is one of the strongest findings in learning psychology. Chi et al. (1989) showed that students who self-explained solved 3× fler problem than passive readers.
When you formulate an explanation, it forces the brain to restructure knowledge. Gaps become visible only when you try to articulate them — not when you reread the text.
Explain disease mechanisms, pharmacology, and physiology. Reveals if you understand cause and effect — not just memorized terms.
Explain legal principles and case law logic. Perfect for exams that test application.
Explain events and causes. Forces you to formulate connections, not just dates.
Processes like photosynthesis, cellular respiration, and evolution require relational understanding — ideal for Feynman.
ChatGPT requires manual prompting, gives unstructured feedback, and loses context between sessions. You don't systematically know what you missed.
Revaldo AI provides color-coded Feynman analysis linked to your material, with quizzes and flashcards on weak points — all in one study set.
Explain disease mechanisms and pharmacology. Reveals if you understand processes — not just terms.
Explain legal principles and case law logic in preparation for the bar exam and course exams.
Explain causes and effects of events. Forces understanding of connections beyond dates.
Biology, chemistry, physics — processes and cause-effect require deep understanding.
Explain systems, circuits, and algorithms — not just memorize formulas.
CPA, PMP, AWS — everything that tests ความเข้าใจเชิงแนวคิด and application.
Let students explain and get AI Analysis. Premium for unlimited in classrooms.
Manuell Feynman (pen and paper): free but you rarely find all the gaps yourself. No expert explanation. No connection to quizzes.
ChatGPT: can provide feedback but requires prompting, lacks structured gap analysis, and does not automatically recognize your course material.
Revaldo AI: Feynman built into the study set with 4-part analysis, expert explanation, and direct link to quizzes/flashcards on weak points. 1 session/week free.
Morgon (20 min): Read summary → Feynman on the 2 hardest concepts → read AI Analysis.
Eftermiddag (25 min): แบบทดสอบ on the same topic → flashcards on gaps flagged by AI.
Evening (10 min): Repeat Feynman on a concept you are still struggling with.
Before exam: Feynman on top 10 concepts → quiz → flashcards. See komplett studieset for everything-in-one.
Ebbinghaus proved it in 1885. Hundreds of studies have confirmed it. Spaced repetition is the most effective way to remember. Upload your notes now.