You can get a free QR code reader on your iPad or other mobile device - search for i-Nigma QR Code Reader in the app store - http://www.i-nigma.com/Downloadi-nigmaReader.html
You can create free QR codes for your classroom - copy and paste into Word to adjust the size - http://www.i-nigma.com/CreateBarcodes.html
Your displays can link to websites, videos, audio or notes made by you.
Please feel to see what I've done with QR codes in 414 - JAT.
It's an animated, exciting, moving version of PowerPoint.
Zoom in and out, up, accross and away.
Email the presentation to your students, upload it to Moodle or show it in class.
See NRI, MHA, JAT, JPF and more.
'How to...' videos.
Get teachers and kids into tech quickly.