QR Codes

I would like diversity in my activities and be able to have students be able to access different information using these different tools like show me and QR Codes.  I feel that QR Codes will be useful for students who want to try the problem first and then check that they are on the right path.

Homework Pencasts

This year I have been using something called a smart pen where I have been posting solutions to homework answers by talking and writing out the solutions.  The students are able to use this effectively as they can view problems where they have trouble with when working on their homework.