We've known about QR codes for a long time. They are small, abstract drawings that, when read by a mobile device with an appropriate application, allow information to be disseminated quickly. These codes can be of great service to teachers and students.
During the last joint and collaborative training of RÉCIT in Victoriaville, Claude frenette offered a workshop on QR codes and their usefulness in the classroom. On the RÉCIT website, there is a summary of the main lines seen during this training.