this presentation by Annalise Adam of which you can see my sketchnote here.
I had experimented before with the site QRCode Monkey, which allows you to add an image to the middle of your QR code. That's what I used to make the two codes above. I thought that adding an image could add an extra dimension to a QR activity.
I have designed a scavenger hunt, inspired by Annalise's weather activity in which we took part on Sunday, using QR codes with images embedded. Please feel free to take a look and use it if you wish. You can download it from here.