Parent sign-up slip card — worked example
Last updated: October 11, 2026
Maple Street Math Club sends one term sheet home per student. The old way was a paper stub that lived in a backpack; this card holds the whole reply: name, session yes/no, and the allergy line the teacher actually needs before Saturday.
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Sample data：Scan the code on this page — it opens this page. That is the "url never dies" trick in one motion. Everything on the card is fictional; your own version takes your name in the workbench.
Start from a card like this →What happens after the scan
ON THEIR PHONE
One action, ten seconds
Any camera opens the card: no app, no login, no form six questions deep.
ON YOUR SIDE
The answers, live
Submissions land on the data page as they arrive — with the state the card promised: spots left, full, or waitlist.
One question this sample gets asked
Why would a school flyer carry a card instead of a QR to a form?
Because the state comes back: who is in, how many left, and the form closes itself at the room size. A plain QR to a bare form keeps collecting names for a room that is already full.