Open Classroom replaces scattered YouTube videos and ChatGPT walls of text with structured, interactive classes — complete with teaching, quizzes, and simulations. You don't just read. You participate, answer, and actually learn.
No credit card required. 2 free classes every week.
60sto generate a full class
Quizzesthat test real understanding
Simulationsyou interact with, not watch
Any topicfrom your textbook or curiosity
Here's what a class actually looks like — teaching, questions, and quizzes that test your understanding:
openclassroom / quantum-entanglement / slide 3 of 8
Teaching — Quantum Entanglement
Why Einstein called it "spooky action at a distance"
T
Teacher
"Imagine two gloves in separate boxes, sent to opposite ends of the universe. The moment you open one and see it's a left glove — you instantly know the other is right. Entanglement is like that, except…"
You
Your question
"Wait — but the gloves always had a handedness. Quantum particles don't have a spin until measured, right?"
Quiz — Do you actually understand?
What does quantum entanglement NOT allow?
Instant correlation between measurements
Faster-than-light communication ✓
Violation of local realism
Shared quantum state between particles
Correct! The no-communication theorem prevents FTL signalling despite the correlations. You got this because the glove analogy made it click.
Why it works
You participate. That's why you remember.
Every class is structured to make you think, answer, and interact — not passively scroll.
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You answer, not just read
Quizzes throughout every class test whether you actually understood — not whether you can copy-paste. Get wrong? You get a targeted explanation of YOUR specific mistake.
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Touch it, not just hear about it
Drag a slider to change gravity. Adjust variables in a chemical reaction. Watch a sorting algorithm run. Interactive simulations make abstract concepts concrete and intuitive.
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See it drawn out, step by step
Diagrams, equations, and flowcharts are drawn in real time as concepts are explained. You see how the pieces connect — not just the final answer.
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Learn from YOUR textbook
Upload your actual PDF, paste a URL, or drop in your course notes. The class is built around what you need to study — not generic internet content.
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Build something, don't just memorize
For complex topics, structured projects guide you through building real understanding. Milestones keep you on track. You walk away knowing how to apply what you learned.
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Take it with you
Download slides as an editable .pptx for revision. Export interactive content as a standalone file. Share with classmates or review before an exam.
How it works
Four steps to actually understanding
Each class is structured around active learning — you don't just sit and watch.
01
Tell it what you need to learn
Be specific — say what confuses you, not just the topic name.
02
Use your own study material
Upload a PDF, paste a URL, or drop in text from your actual textbook.
03
Participate — don't just watch
Answer quizzes, ask questions mid-class, interact with simulations.
04
Explore different perspectives
Use Roundtable mode for topics with multiple valid viewpoints.
The more specific, the better
A good prompt creates a class tailored to exactly where you are. Mention your level, what confuses you, and what you want to walk away understanding.
// Generic (produces a shallow class)
quantum physics
// Specific (produces a class that actually helps)
Explain quantum entanglement to someone who
understands classical physics but has never
done quantum mechanics. Focus on Bell's
theorem and why it matters. Skip the math.
Pro tip: Add "I'm confused about X" — the class will specifically tackle your confusion, not just give a textbook overview.
Learn from YOUR material, not generic content
Studying from a textbook, research paper, or lecture notes? Paste the content directly. Open Classroom builds the class around your actual material — so the quizzes, explanations, and simulations are about what you're actually studying.
Works with:
• PDF upload (textbooks, papers, notes)
• Paste raw text directly
• Any public URL (articles, docs)
• YouTube video URL (auto-transcribed)
Pro tip: For dense papers, paste just the abstract + one key section. You get a deeper, more focused class than trying to cover everything.
You learn by doing, not watching
Every class includes quizzes that test your understanding, simulations you can interact with, and moments where the teacher asks YOU questions. If you answer wrong, you get a targeted explanation of your specific mistake — not a generic correction.
During a class, you can:
• Answer quiz questions (get instant feedback)
• "Wait, explain that part again"
• "Give me a real-world example"
• Drag sliders in interactive simulations
• "Quiz me harder on this"
Pro tip: Wrong answers are the most valuable part. Ask "explain why I was wrong" — you get a personalized explanation that sticks.
Hear both sides, then decide
For nuanced topics — ethical debates, design trade-offs, historical interpretations — Roundtable mode presents multiple perspectives that challenge each other. You can jump in and argue. This builds deeper understanding than any single explanation.
Great for:
• Should I use React or Vue for this project?
• Was the French Revolution justified?
• Microservices vs monolith — for MY use case
• Nature vs nurture in language development
• Active vs passive investing
Pro tip: Pick a side at the start. The class will challenge your position directly — that's where the real learning happens.
Pricing
Try 2 full classes free. Every week. No card needed.
Each class includes structured teaching with visual diagrams, interactive quizzes, hands-on simulations, and voice narration. Upload your own material or pick any topic.
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Teaching
AI teacher explains with live diagrams
T
Teacher
"Imagine a leaf as a tiny solar panel — it captures sunlight and converts it into sugar the plant uses as food..."
☀️ Sunlight
↓
🌿 Leaf (Chloroplast)
↓
🍬 Glucose+💨 O₂
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Quizzes
Test real understanding, get instant feedback
What do plants release during photosynthesis?
Carbon dioxide ✗
Oxygen ✓
Nitrogen
Water vapour
💡 Correct! Plants absorb CO₂ and release O₂ — which is why forests are called the lungs of the Earth.
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Simulations
Interact with live experiments
💡 Circuit Simulator
🔋💡🔌
Voltage 9V
Brightness: ████░░
← drag to change voltage
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Voice
Listen to your AI teacher speak
T
Teacher — Slide 3 of 8
Photosynthesis explained
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1:24 / 3:10
Starter
₹299/mo
$4.99/mo
15 classes a month — enough for regular study sessions.
15 full classes/month
Teaching + quizzes + simulations
Voice narration in every class
Upload your own study material
Export slides and interactive content
Refund if a class doesn’t generate properly
Best value
Pro
₹499/mo
$9.99/mo
30 classes a month — for serious learners and exam prep.
No credit card. 2 free classes every week. Same quality as paid plans.
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Secure payments via Razorpay. Cancel anytime. If a class fails to generate or something goes wrong, your credit is automatically refunded.
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Paying from outside India? We're setting up international payments. Sign up for free now and drop us an email — we'll set up your subscription personally and notify you when USD payments go live.
Questions
Quick answers
What do you need to understand today?
Pick a topic. 60 seconds later, you're learning — with quizzes, diagrams, and simulations.