Yesterday on Twitter my good friend, Mary Beth, posted a video for her kids on how to find Creative Commons photos on Flickr. It is a great and simple tutorial that really anyone can use with teachers or kids.
Short and simple.
In addition to this video you could also check out the Creative Commons Search to find photos, music and video. Also check out Compfight, which is a tool that searches the CC photos in Flickr.
This post on Understanding Creative Commons can be helpful also.
Thanks Mary Beth for the great video!