One application I keep using with the iPads is QR Codes. In my previous post on QR codes, I was frustrated that I was unable to have math type font in any of my QR codes. I was able to link simple text or links to websites that hosted worksheets or math problems, but I was hoping that students would just scan a code, then a math problem would appear on the screen of the iPad. After weeks of searching for a solution, I found it!
With the help of the my new Macbook Pro and Grab utility, I was able to capture math problems that I either created in my own documents or that are already published on the web or worksheets. I found a website called postimage.org to host my images for free. Then used the QR code creator Kaywa to link to the image sites.
To capture an image on a Mac, save it and then upload it:
- Bring up a picture or document on the front of the computer screen.
- Go into Finder (Mac) and chose Grab under the Utilities menu.
- While the Grab is open, go the Capture menu and chose Selection.
- Use the selection tool to take a snapshot of your desired object on the screen.
- A box will pop up with the image that was captured.
- Go to the File menu while the image is still open, and choose Save.
- Save the file to wherever you usually save.
- Open up postimage.org (see image up to right)
- Click on Choose File and click Upload.
Your file is now hosted on the website!
To turn your images that are hosted on postimage.org into a QR code:
- Go back to the webpage that is hosting your image and copy the URL.
- Open up any QR creator website. I use Kaywa. (see right)
- Paste the URL into the space provided.
- Chose the size you want the QR code to be and click Generate.
- Click on the QR Code and it will open up in a new window.
- Print the page.
I used the above process to create nine different QR codes containing nine different math problems for this past Wednesday's class. I taped the QR codes around the room to get the kids up and moving. Each of my students used a QR code reader app on the iPad to scan each code. Some students used another app to solve the problems, while other students used paper.
At the end of the class I did a quick formative assessment, using the Exit Ticket from the Socrative App, to see if the students understood the material practiced.
I thought the class was a success, and I was able to figure out my QR code dilemma!