"Schools seem to teach all kinds of footnotes and credits for written words but not for images. The educators need to be educated on this issue."
They are more than educated on the issue. I doubt there is a teacher alive who isn't familiar with The Classroom Guidelines, which were published as part of the House of Representatives Report on the (then) pending 1976 Copyright Act.
Publishers love to sue schools, so administrators are adamant that teachers sign off and abide by the Guidelines. Oddly enough, the guidelines are not part of the copyright legislation nor are they legally binding. However, since they were officially published by the House, they have become the court room standard in cases involving schools.
SINGLE COPYING FOR TEACHERS:
A single copy of the following items may be made for a teacher's scholarly research or use in teaching or preparation to teach a class:
-- A chapter from a book.
-- An article from a periodical or newspaper.
-- A short story, short essay or short poem, whether or not from a collective work.
-- A chart, graph, diagram, drawing, cartoon or picture from a book, periodical or newspaper.
MULTIPLE COPIES FOR CLASSROOM USE:
Multiple copies (not to exceed more than one copy per pupil in a course) may be made by or for a teacher giving a course for classroom use or discussion, provided that:
--The copying meets the tests of brevity and spontaneity as defined below; and
-- Meets the cumulative effect test as defined below, and
-- Each copy includes a notice of copyright.
http://www.copyright.com/Services/copyrightoncampus/content/index_class.html
Publishers are coming down so hard on schools that lawful fair use is being squeezed into an ever-smaller window. Their intent is to outlaw fair use entirely. It's only natural that there is a growing backlash among professors and school administrators.
Dan Turner
Dan Turner's Seven Keys to Selling Art Online