Great video explaining the uses of Aurasma. It has taken qrcodes to the next level. With qrcodes, you are sent to anything that has a URL. You need to create the item with a URL, create a qrcode, and then attach the qrcode to the item that is scanned. Whew...
With Aurasma, you create the item to be scanned (qrcode mentioned above), and then create where you want to go (URL mentioned above). The initial learning curve is longer than learning how to do qrcodes, but the dazzle factor is amazing!
If you don't want to create your own, there are many free with the app.
The neat thing with Aurasma is the ease in which the students can access information. Well worth checking out!