QR Codes can be found in all sorts of places and can be a great new way for children to access web resources on mobile devices like iPod Touches, iPads, tablets and laptops with a webcam.
In Term Three of 2011 I wrote a series of blog posts on using QR codes in the classroom. They can be found here.
K12 OnLine 2011 QR Codes from Allanah King on Vimeo.