A Chrome extension for Google Slides
A teaching toolbox built into Google Slides.
Visualiser, periodic table, calculator, AI hinge questions and exam papers, all on top of the deck you already teach from.
Launching late 2026. Free for the first month, no card needed.
Why this exists
Built by a working secondary teacher in the UK, not a startup. I made OverSlide AI for my own classroom because I was tired of tab-switching to grab a calculator, hunt for a formula sheet, or spin up a quick check question mid-lesson. It is the tool I wished existed during a Year 11 mock paper review on a wet Tuesday afternoon. If it earns its place on my taskbar, it might earn its place on yours.
What you get
Six tools, ready when the lesson needs them.
Everything sits on top of your existing Google Slides deck. Toggle a tool on, use it, toggle it off. The slide is still right there underneath.
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Visualiser overlay
Show anything from your laptop camera over the slide. Live demos, marking exemplars, kit close-ups. No swapping to a separate app.
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Periodic table on demand
A clean, full periodic table you can pull up on top of any slide. Tap an element for the details students actually need.
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Formula sheets at a click
Maths and physics formula sheets in a tidy overlay. Pull them up while a question is on the board, dismiss them when you are done.
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Calculator overlay
A scientific calculator pinned where you need it. Useful in the moment a student asks what that is to two significant figures.
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AI hinge questions
Generate a hinge question from the slide you are currently teaching. Tells you whether the class actually got it before you move on.
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AI exam paper generation
Build a topic-specific paper from the content of a deck. Mark scheme included, ready to print or push to your VLE.
In the lesson
What it looks like running on a deck.
A few screenshots and a quick demo of the tools in action over a real Slides deck.
Screenshot 1 placeholder
Drop an image at /screenshots/screenshot-01.png and update the list in Showcase.astro
Screenshot 2 placeholder
Drop an image at /screenshots/screenshot-02.png and update the list in Showcase.astro
Screenshot 3 placeholder
Drop an image at /screenshots/screenshot-03.png and update the list in Showcase.astro
Screenshot 4 placeholder
Drop an image at /screenshots/screenshot-04.png and update the list in Showcase.astro
Screenshot 5 placeholder
Drop an image at /screenshots/screenshot-05.png and update the list in Showcase.astro
Sixty seconds, in lesson.
A short walk-through of the toolbar and a couple of the tools running on top of a real deck.
Demo video placeholder
Drop a file at /video/demo.mp4 and a poster image at /video/demo-poster.jpg, then set videoSrc in Showcase.astro.
How it works
Three steps, then forget it is there.
- 01
Install the extension
Add OverSlide AI from the Chrome Web Store. One click, no setup wizard.
- 02
Sign in with Google
Use the Google account you already use for Slides. We do not ask for anything we do not need.
- 03
Open any Slides deck
A small toolbar appears in the corner. Tools turn on and off as you teach. That is the whole thing.
Pricing
Honest pricing, no per-seat surprises.
Launching late 2026. Join the waitlist for early access and a free first month at launch.
Individual
For one teacher. Every tool, AI included, your own decks.
- All six in-lesson tools
- AI hinge questions and exam papers
- Use across all your devices
Launching late 2026. Join the waitlist for early access.
Department
Up to ten teachers in the same department, sharing the same question banks.
- Everything in Individual
- Up to 10 teachers
- Shared department question banks
- Single invoice, one renewal
Launching late 2026. Join the waitlist for early access.
Site licence
Whole-school deal. Get in touch for a quote that fits your numbers.
- Unlimited teachers
- Cross-department question banks
- Bulk onboarding
Launching late 2026. Join the waitlist for early access.
Waitlist
Get a heads up when OverSlide AI is ready.
Drop your email. I will send one note when it launches, and a heads up if anything earlier is worth knowing. No marketing, no list selling.