Sorry you had to deal with this. I have a school website and was told to be sure to put a copyright at the bottom of the page. I am also working on my masters in educ technology. We had to take a web design class. Here is a link to one of the sites we had to read about. It is the US Copyright office. Don't know if it will help but thought I would share.
U.S. Copyright Office - Copyright Law: Chapter 5