Section 107 contains a list of the various purposes for which the reproduction of a particular work may be considered fair, such as criticism, comment, news reporting, teaching, scholarship, and research. Section 107 also sets out four factors to be considered in determining whether or not a particular use is fair.While students will use, for the majority of their work, images that are in the public domain, or that are licensed under a Creative Commons license, they may, from time to time, find it is necessary to use a copyrighted image in their educational multimodal compositions. In these instances, students are expected to write and attach an explanation in keeping with the "Fair Use" section of the copyright law.
- The purpose and character of the use, including whether such use is of commercial nature or is for nonprofit educational purposes
- The nature of the copyrighted work
- The amount and substantiality of the portion used in relation to the copyrighted work as a whole
- The effect of the use upon the potential market for, or value of, the copyrighted work
They can find more info at Wikipedia, or at the US Copyright site.