Learn faster

Turn any YouTube video into an AI tutor that quizzes you back

6 min read · By Tasha Shevchenko

Two free Google tools, about ten minutes, and the tutorial you were going to half-watch becomes an app that explains it, answers your questions, and tests you on it.

Here's the thing nobody running a business will admit: you don't have a knowledge problem. The information is free and everywhere. You have a retention problem. You watch the 40-minute tutorial, nod along, feel smart — and by Thursday you couldn't rebuild a single step of it.

I ran a fix for this past my own learning the way I'd run any process: can I make it active instead of passive, and can I do it in under fifteen minutes? Turns out yes. You take the video you were already going to watch and turn it into an interactive tutor — one that walks you through the ideas, lets you ask questions, and quizzes you at the end. The whole thing runs on two free tools from Google.

I came across the core workflow in a note by Gencay at LearnAIWithMe — credit where it's due. What follows is how I'd run it, why it works, and the part most people get wrong.

First, the honest part about "watching to learn"

You'll see people online claim you "only retain 10% of what you watch but 75% of what you do." Round, tidy numbers. They come from something called the Learning Pyramid — and those exact percentages are made up. No traceable study, no data. It's one of the most-debunked myths in education. I'm not going to build your time around a fake number.

But the idea underneath it is real, and there's an actual study. A 2014 meta-analysis in PNAS pooled 225 studies and found students in plain lecture classes were 1.5 times more likely to fail than students doing active learning, and exam scores rose about 6% when learning was active. So: passive watching genuinely underperforms doing-and-testing. We just don't need to dress it up with invented stats. The workflow below flips watching into doing. That's the whole point.

What you need (both free)

• NotebookLM — Google's research tool. It reads your sources and lets you talk to them. Free with a Google account.
• Gemini — Google's assistant, with a feature called Canvas that builds working interactive apps from a prompt. Also free.

One caveat that'll save you a headache: NotebookLM only pulls in public YouTube videos that have captions, and it only reads the transcript — not the visuals. So this works beautifully for talky content (lectures, walkthroughs, interviews) and poorly for videos where the value is purely on-screen with no narration.

The workflow, three steps

Build me an interactive tutor app from the attached notebook, using Canvas.

I want to actually learn this, not just read a summary. So:

- Open with a 60-second, plain-English rundown of what this covers and why it matters to me.
- Walk me through the key ideas one at a time. For each: explain it simply, give me a real example, then ask me one question I have to answer before I can move on.
- Give me an "ask anything" box that answers only from the notebook — no outside guesses, no filler.
- End with a short quiz mixing multiple choice and write-your-own-answer, and tell me what I got wrong and why.
- Then point me to the 2 or 3 things I should review again.

Keep it clean and readable on my phone. Make it feel like a tutor, not a PDF.

The first one to build

Pick the tutorial that's been sitting in your "watch later" for a month — you know the one. Build the tutor this afternoon. Use it in two or three short sessions this week instead of one passive watch. You'll walk away knowing the material cold, in less total time than the video would've taken you twice.

That's the unlock for an operator: you stop paying for courses that forget you the second you close the tab, and you start turning any free video into something that teaches you back.