QR codes may look like random checkerboards, but they rely on mathematics powerful enough to decode signals from deep space. Built on Reed–Solomon error correction, a QR code can still function even ...

Among the many changes brought about by the pandemic is the widespread use of QR codes, graphical representations of digital data that can be printed and later scanned by a smartphone or other device.

As mobile learning and technology is more readily integrated within classroom settings, QR codes can be used as an interesting method to capture a student's attention and make lesson material more ...