As a Visual Art teacher I have found QR codes to be very helpful when young students wish to convey the meaning of their art to their audience but don’t have the writing skills.
The R-1 students video the explanation of their artwork on an iPad and save it to their Google drive. They then use https://www.qr-code-generator.com/ to generate their QR code by pasting the link from their Google drive. Once this is printed they attach it to the frame of their work.
This has been very popular with parents and older students so they can understand what they are seeing.