QR code

Exploring QR codes in schools

QR code link to Wikipedia article about QR codes

From @abowllan comes a link to this thought-provoking article by Tim Wilsonabout what might be possible in schools using QR codes. I think the case is a little overstated in the post, but it's fun to think about nonetheless. If you don't know what a QR code (that bar code-looking item) is, the article explains that, too.