Copying of copyrighted materials for student learning and research use without written permission may occur in the following instances:
Single copies of copyrighted materials may be made by or for teachers at their individual request for scholarly research or use in teaching or preparation to teach a class.
Multiple copies (not to exceed more than one copy per student in a course) may be made by or for the teacher giving the course for student learning use or discussion; provided that the following three criteria are met:
Brevity: Either a complete article, story or essay of less than 2,500 words, (usually varies 3-8 pages depending on size of page and type) or an excerpt from any prose work of not more than 1,000 words or 10 percent of the work, whichever is greater.
Spontaneity: The copying is at the instance and inspiration of the individual teacher, and the inspiration and decision to use the work.The moment of its use for maximum teaching effectiveness are so close in time that it would be unreasonable to expect a timely reply to a request for permission.
Cumulative effect: Copying of the material is for only one course, for one class, in the school in which the copies are made.
Note that some vendors in their licenses prohibit the copying or articles for classroom use. In all cases, license restrictions override Fair Use.