Grab any YouTube video — TED, series, vlog, music, interview — paste the link into Lanna and in 30 seconds it becomes an interactive lesson with navigable audio by phrase, word-by-word translation, and exercises. No need to download anything, no need to transcribe manually, no need to hunt for subtitles.
Look, YouTube has the best language learning material in the world. I've been saying this for years. Movies, series, TED Talks, vlogs, podcasts — all for free. The problem has always been: how do you STUDY with a video? Watching is easy, but studying requires pausing, taking notes, saving words, rewinding, listening again. It’s a hassle.
In 2026, Lanna changed that. You paste the link of any YouTube video and the AI transforms it into a fully interactive lesson in under 30 seconds. Without touching anything. Without downloading subtitles. Without replaying 50 times. You just paste, wait half a minute, and you’re studying. In this post, I’ll show you how it works, what you can do, and which videos yield the best results.
The process in 3 steps
What the interactive lesson has (and what YouTube alone does not provide)
Watching a video on plain YouTube is entertainment. You watch, like, close it. In 2 days you forget everything. An interactive lesson is real studying — you consume actively.
- Navigable audio by phrase. Jump to any specific phrase, repeat just that, go back. On YouTube, you only have the general progress bar.
- Word-by-word translation. Click on any word in the text, see the translation into Portuguese. No need to open Google Translate in a separate tab.
- Save vocabulary. New words go to the SRS flashcard. In 3 weeks, they’re fixed in long-term memory.
- Corrected pronunciation. Records each phrase from the video, AI gives a percentage score. Repeat until you pass.
- Automatic exercises. The AI generates multiple-choice questions about the video’s content to test comprehension.
- Saved history. The next time you open it, it remembers where you left off and which words you have already seen.
Which videos yield more (by level)
Not every video is worth the effort. For each level, there’s a type that yields more:
- A1 (absolute beginner): simple daily routine vlog, educational video of 1-3 minutes, slow cartoon. Search for "English for beginners daily routine" on YouTube.
- A2: TED-Ed (TED with short animation), cooking recipe, basic tutorial. 3-5 minutes.
- B1 (intermediate): more natural vlog, video podcast, short interview, short episode of an educational series. 5-10 minutes.
- B2 (upper-intermediate): full TED Talks, sitcom series, movies with English subtitles, long interviews. 12-20 minutes.
- C1/C2 (advanced): anything. Movie without subtitles, debate, stand-up, long podcast.
If you want to see the best videos by category already curated, check out the complete guide to YouTube for learning English — it has Lanna's library with movies, series, TED, interviews, and music organized by level.
Mistakes to avoid when transforming video into a lesson
- Video too difficult for the level. If you understand less than 60% of the audio, it’s guaranteed frustration. Lower the level.
- Video too long. Don’t paste a 1-hour video from Lex Fridman if you are A2. Start with 5-minute clips.
- Sung music as a study video. Music works, but only with clear lyrics and singers who articulate (Coldplay yes, death metal no).
- Not reviewing. Studying the video once doesn’t fix it. Go back to the same video 2 or 3 times a week, plus shadowing.
- Not saving words. Every unknown word goes to the flashcard. If you don’t save, you’ll forget in 48 hours.
How to combine with the complete study method
Transforming video into a lesson is not the entire method — it’s one of the tools. The ideal routine combines this with pronunciation, conversation, and review:
- 0-10 min: watch the transformed video in Lanna, pause when needed, save words
- 10-15 min: do shadowing on 3-5 phrases from the video
- 15-25 min: have a voice conversation with AI about the video’s topic
- 25-30 min: review flashcards of saved words
This flow covers all 4 skills (listening, reading, speaking, writing) in 30 focused minutes. To see the complete method, I have a whole guide on how to use AI to learn English.
Frequently Asked Questions
Does any video work?
Almost all of them. Public video with clear audio works. Private, loud music over speech, or poor audio does not.
How does the AI transcribe?
Audio transcription model that processes directly. 30-60 seconds for medium videos.
How long is the processing time?
30 seconds for short, 1-2 minutes for long.
Can I pause within the lesson?
Yes, phrase-by-phrase navigation, save words, repeat sections.
Does it work in all languages?
13 main languages (English, Spanish, Italian, French, German, Portuguese, Russian, Dutch, Japanese, Korean, Mandarin, Arabic, Hebrew).
Monthly limit?
Free: 3 contents/month. Pro (R$39.90): unlimited.
Let’s get started?
Go to YouTube now, choose a 5-minute video about something you like, copy the link, and paste it into Lanna. In 30 seconds, you’ll have your first real interactive lesson. The free plan allows for 3 contents per month — you can test 3 different videos this month.
