Schools & teaching
Run a classroom brainstorm with one QR code
Asking “any ideas?” gets you the same three hands every time. Put a QR code on the projector instead: everyone contributes at once, quieter students included, and every idea lands on the board signed with a nickname in its own color.
Set it up before the bell
- On the classroom PC, create a room. You join instantly as the owner - your posts are signed “Owner”.
- Post the brainstorm prompt as the first message: “Ways our town could cut plastic waste - go!”
- Put the room’s QR code on the projector (it’s right there in the room’s share panel).
- Students scan with a camera, type a nickname - real name or not, their choice - and start posting.
- Ideas appear on the projector in real time, each in its author’s color.
- To wrap up, toggle read-only: the board freezes, and you talk through the best ideas together.
- Tap Copy all to keep the thread in your lesson notes. The room erases itself within hours.
Why it works in a classroom
- No student data. No emails, no accounts, no sign-ups - students join under any nickname, so there’s nothing to register and nothing to delete later.
- Quieter voices get heard. Typing an idea is easier than raising a hand; the color-coded names still give everyone credit.
- Links stay hidden. A pasted link shows up blurred, and only opens after the reader accepts a caution card - and you can remove the message with one tap.
- You keep control. Read-only mode is one tap, and the flood brake stops anyone machine-gunning the board.
- It cleans up after itself. The room is gone after 6 quiet hours - no forgotten class chat living on forever.
Big classes: every phone, or one device per table
A classroom room holds up to 200 devices at once, so a full lecture theatre can post from their own phones. For a class of 30 doing group work, try one phone or tablet per table instead: groups argue their ideas out loud first, then post the good ones - you get less noise and better thinking than 30 simultaneous streams.
Other ways teachers use rooms
- Exit tickets - “post one thing you learned today” in the last five minutes.
- Anonymous questions - students ask about a tricky topic under a nickname, without fear of looking lost.
- Revision quizzes - post a question in read-only bursts, open the room for answers, repeat.
- Homework handout - flip read-only on and post the assignment; students copy it from their own phones.
FAQ
Do students need to install anything or make an account?
No. Students scan the QR with their camera, the room opens in the browser, they type a nickname and start posting. Works on any phone, tablet or laptop.
How big a class does it handle?
A classroom room holds up to 200 devices at once, so every student can post from their own phone. For group work, one device per table still works well.
Can students post links or spam the room?
Links appear blurred until a reader accepts a caution card, messages are rate-limited, and you can remove any message. If things get lively, flip the room to read-only for a moment - only you can post until you flip it back.
What happens to the ideas afterwards?
Tap Copy all to paste the whole thread into your lesson notes before you leave. The room deletes itself after 6 hours of inactivity - nothing is stored.
Try it next lesson
Create a room, post a prompt, put the QR on the projector - and watch the whole class answer at once.
Create a room