Step One:
Construct a list of your vocabulary words & definitions needed for your lesson or unit. I prefer to do mine by unit but it is your preference.
Step Two:
Find a free QR code generator on the internet.
I prefer to use: QR Code Generator because the QR code pops up right on the screen and I can then copy & paste the image without having to download it and/or save it. You can type a definition or you can have the QR code lead students directly to a website.
Step Three:
I open a Word document and type up my words. Then I go to the QR code generator and do one word at a time. For the example below, I am defining the key term "iron curtain." I will then copy the QR code image and paste it into my Word Document. The reason I do this is to stay organized. All the QR codes begin to look a like and if you print them without labeling them, it will take extra time to sort them later!
Here is a screen shot of what I do with the QR codes once I make them. I copy and paste each image and type the word beside it. Like I said above, this helps with the organization factor and it helps me to save paper because I shrink down the size of the QR code to make them small enough to fit on my sentence strips.
Step Four:
Print all of your QR codes off. Depending on the number of the words and the size of your QR code images, this should only take 1-2 sheets of paper.
Step Five:
Write your words on sentence strips, construction paper, cardstock, etc.
Step Six:
Cut out your QR code images (be careful to not cut into the actual encrypted part or else it won't scan) and glue them beside your words on the sentence strip.