I’ve been discussing QR codes in this blog for some time. In the blog for Discover magazine, they report on another use of QR codes. While this isn’t related to teaching, it does illustrate how pervasive those pesky QR codes are becoming.
“In a bid to boost online sales, grocery retailer Tesco covered the walls of a Korean subway station with photos of its merchandise arranged on store shelves. Each item was endowed with a QR code, those black-and-white squares recognized by smartphones, and commuters on their way in to work could snap pictures of the codes with phones to fill a virtual shopping cart. They paid for their items via an app, and the food was delivered to their homes after they got home from work.”
