ContentRoof

Turn a textbook figure into a one-minute lesson

Photograph the figure from this week's chapter. ContentRoof makes a narrated video that teaches it on the figure itself, part by part, with the flows and moving parts shown working. Start the lesson with it, set it as homework or send it to a student who was absent.

Make a lesson from a figure →

Free to try · 11 languages

Diagram to video: a kidney diagram explained on itself · made with ContentRoof

The figure students already have, brought to life

Students look at the figure in their book and see twenty labels at once. A narrated walkthrough gives them the order: the question the figure answers, each part's job, and how one part leads to the next. Because the video is made on the same figure that's in their book, what they see in class matches what they revise from at home.

Ways teachers use it

Pair it with a quiz

For a lesson that ends with a check, make a lesson video with a quiz on the same topic, or see ContentRoof for teachers. Teachers who sign in with a school email get Pro free.

Fair use of textbook figures

Showing a figure from the class textbook to your own students is everyday teaching. Posting the video publicly is different: use a figure you drew, an openly licensed one, or one the publisher allows you to share.

How it works

  1. Photograph the figureStraight and in good light, with the figure filling the frame.
  2. Say what the lesson is about"How the eye focuses light", "Why the water cycle never stops", or leave it empty for the figure's main idea.
  3. Check the narrationRead the script in the studio and change any line; the video follows. Then download it.

Questions

Is my picture redrawn?

No. The video is made on the exact picture you upload, so every label matches your source. Only the camera, highlights, labels and moving dots are added.

Which languages?

Eleven: English, Arabic, Urdu, Hindi, Spanish, French, Portuguese, German, Italian, Russian and Polish. Narration, captions and labels are in the language you pick, even when the picture is in English.

Can I show it on a projector?

Yes. It's a vertical video; on a projector it plays in the middle of the screen, which suits a single figure well.

Is it free?

You can try it free with a Google sign-in. Students and teachers who sign in with a school email (.edu, .ac.uk, .edu.pk and the like) get ContentRoof Pro free.

Updated 2026-11-14

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