1.The purpose and character of the use, including whether such use is of a commercial nature or is for nonprofit educational purposes;
2.the nature of the copyrighted work;
3.the amount and substantiality of the portion used in relation to the copyrighted work as a whole; and
4.the effect of the use upon the potential market for or value of the copyrighted work.
Code of Best Practices in Fair Use for Media Literacy Education
"This document is a code of best practices that helps educators using media literacy concepts and techniques to interpret the copyright doctrine of fair use." Supported by such distinguished organizations as the National Council of Teachers of English, the Association of College and Research Libraries, and the National Association for Media Literacy Education