There are a lot of different websites that you can use to make QR codes. My favorite site is The QR Code Generator. I like this site because it is easy to use and with the click of a button you can change the size of the code. All you need to do is take whatever information you want to come up when the students scan the code and put it into the code generator. The QR Code immediately pops up onto the screen. Then all you need to do is copy and paste it into the document you are creating.
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The beauty of QR codes is that you can use them in many different ways. I have used them to link my students to websites. (It is a lot easier to have them scan a QR code then to have them type in a website.) I have also used them in centers. My students will read a task card with a problem on it, solve the problem, and then check themselves to see if they are correct. Here is a task card freebie of some QR codes I use to review multiplication and division basic facts and properties.
Do you use QR codes in your classroom? If you do, how do you use them? If you don't, give them a try. I'd love to hear about it!
Be sure to check out Fourth Grade Flipper for Tried it Tuesday to hear about more great ideas that people are trying in their classrooms!
Check out more great links about QR codes at Table Talk with C&C