Teachers Guide to Using QR Codes in Classroom 

According to Wikipedia, a QR code is ” a specific matrix bar code ( or two-dimensional code ), readable by dedicated QR bar code readers and camera phones. The code consists of black modules arranged in a square pattern on a white background. The information encoded can be text, URL, or other data.” Teachers can use this technology for a wide variety of educational purposes.See it on Scoop.it, via TIC & Educación

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Fuente: Tic&Educación