Useful Apps
You will probably want to use a free QR generator for getting a QR code, therefore you only will need to type "QR generator" in any browser you use. As they are free, most of the times they change or they are not simply displayed on the web. For this reason I do not recommend any of them.
You can use, or better, have the student use the app showed below. Most of them are free for the "fremium" version, which means we can use the basic features.
You can use, or better, have the student use the app showed below. Most of them are free for the "fremium" version, which means we can use the basic features.