Copyright laws are constantly changing, so what's a teacher to do? We need to follow the most recent laws and give credit where credit is due and use only items that we are permitted to use.

The following link is to an article from Edutopia that sums up the dilemma:

The United States Copyright and Fair Use Guidelines:

If you are still unclear about copyright and fair use procedures, you may want to try copyright free materials from sties like:

Creative Commons:
(Shared, copyright free multiple medias)