Important post from Joyce Valenza that should start some interesting thinking about Fair Use:

I learned on Friday night that the critical test for fairness in terms of educational use of media is transformative use. When a user of copyrighted materials adds value to, or repurposes materials for a use different from that for which it was originally intended, it will likely be considered transformative use; it will also likely be considered fair use. Fair use embraces the modifying of existing media content, placing it in new context. Examples of transformativeness might include: using campaign video in a lesson exploring media strategies or rhetoric, using music videos to explore such themes as urban violence, using commercial advertisements to explore messages relating to body image or the various different ways beer makers sell beer, remixing a popular song to create a new artistic expression.

Basically, Joyce writes about how the scope of what we can and cannot do with our students regarding reuse and remix of copyrighted materials may be much broader than we think. Read the whole thing.