My cuties love using QR codes in the classroom for learning! I introduce them as "robot sight words" with these little cutie robots to help me out.
I then let my students know that the robots turned our sight words into robot sight words, but that we have a way to "read" the sight words with our iPods. The littles were so perplexed and excited to read robot sight words and I was so excited to find these robot cut-outs at Dollar Tree to glue the sight words onto.
If you're interested in learning more about QR codes, I have several resources for you for FREE! Here is a video of my class from two years ago with the iPads.
I also created this document to help you learn how to create QR codes.
On my class website, I have a whole page devoted to QR code creating for you to use for FREE!