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Lesson videos with quizzes, in minutes

Type what you're teaching and get a short narrated lesson: one idea explained step by step, a diagram for every sentence, then a quiz with a countdown and the answer explained.

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Free to try · 10 languages · no watermark

A lesson with a quiz · made with ContentRoof

Made for teaching, not just posting

Teachers don't need flashy transitions. They need a clear explanation, a picture for each step and a way to check understanding. The Lesson + quiz writer mode is built around that:

  1. One idea, step by step. The AI writes a short lesson on your topic with a simple example students can picture.
  2. A drawing for every sentence. Diagrams trace themselves on as the narrator speaks, so students follow along.
  3. A quiz before the end. One or two questions appear with their options, a 3-2-1 countdown runs, and the right answer lights up green.
  4. The answer explained. Each quiz is followed by a scene that says why the answer is right.

Who uses it

Teaching tools built in

Teaching need What the video does
Show a process Steps joined by arrows, or a cycle for loops
Compare two things A two-sided layout
Explain scale A powers-of-ten zoom from small to big
Teach dates Timelines and a clock for years
Teach geography A globe that flies to places and lights up countries
Use real data Bars and lines that grow as each number is said
Check understanding A quiz with a countdown and an answer reveal

An example lesson script

# hook
Plants make their own food, and all they need is light, water and air.

# headline: The recipe
Leaves take in carbon dioxide, roots bring up water, then sunlight turns them into sugar.

# quiz: What do plants release during photosynthesis? | options: Oxygen; Nitrogen; Smoke | answer: Oxygen
Quick check. What do plants release: oxygen, nitrogen or smoke?

# headline: The answer: oxygen
Oxygen. The plant keeps the sugar and releases the oxygen we breathe.

Handouts from the same lesson

The carousel export turns a video into one 4:5 slide per scene, as a PDF and as images. Each slide shows the scene's finished drawing with its narration as text, which makes a quick handout or a revision sheet to share with a class.

Teaching in your students' language

Lessons work in 10 languages: English, Urdu, Hindi, Arabic, Spanish, French, Portuguese, German, Italian and Russian. Urdu lessons use Nastaliq captions, right to left, with years and decimals spoken the way people say them. A teacher can make the same lesson in English and Urdu from one topic.

Tips for lesson videos that stick

How it works

  1. Type the topic and levelFor example "Photosynthesis for class 7". Choose the Lesson + quiz mode and the language.
  2. Review the lessonCheck the explanation and the quiz against your syllabus. Edit any line, option or answer.
  3. Preview itWatch the diagrams draw, the quiz count down and the answer light up. Choose 16:9 for a classroom screen.
  4. Download and shareSign in with Google for free, download the video, and export the carousel PDF as a handout.

Questions

Can I make lessons in Urdu or Hindi?

Yes. The voice, captions and quiz appear in Urdu (Nastaliq) or Hindi (Devanagari), along with 7 other languages.

Can I show it on a classroom screen?

Yes. Choose the 16:9 format: the narration sits on the left and the animation on the right.

Can I write the quiz questions myself?

Yes. Edit the AI's quiz or write your own with a line like "# quiz: question | options: a; b; c | answer: b".

How long can a lesson video be?

Up to 3 minutes. Short lessons on one idea work best.

Is it free for teachers?

Writing scripts and watching previews is free with no sign-up. Downloading needs a free Google sign-in, and videos have no watermark.

Updated 2026-10-28

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