QR codes have been turning up everywhere from the billboard at the bus stop to the back of the ketchup bottle at your favorite restaurant. These blocky little squares are beefed up barcodes that anyone with a smartphone can scan.
QR codes are great for passing long URLs to your students’ devices. I think they work best when you want to conceal information for a period of time while the students try to solve a problem you have given them. For example, let students scan the QR code for a hint on a difficult problem or create a guess and check bulletin board to review a recent lesson.
However, are they always worth the time? QR codes are not as quick as they’re name (quick response) makes them sound. They are not worth the time for short messages that your students could probably type in faster than scanning. They are especially slow if your students do not already have the app required to read the codes installed on their device. You risk losing your lesson tinkering with technology for technology sake.
McKee Floyd, director of brand development for Sweetgreen, said it best when he spoke with NPR:
The issue I have with QR codes is that marketing is a little bit like telling a joke, and the longer the joke, the better the punch line has to be — and [using] QR code is a really long joke
I think the same is true in the classroom. If you’re going to use QR codes with students, make sure your punch line is worth it.