slackmath is a cool little site I just found out about from Richard Byrne's excellent blog. This is an innovative site where students download Algebra problems (PDF format) that has a QR code next to it. The students then try to solve the problem and then scan the QR code to watch a video explanation of the solution.
I highly recommend checking out slackmath by clicking here!!!
Below is a demo video...
For my Pinterest board on QR Codes click here.
