The third of a series on the circulation of nonprint educational media by media centers at district, county, and regional levels, this report is primarily concerned with the distribution of nonprint materials for handicapped learners, and the selection and evaluation methods used by media directors in building collections of materials that are…

In his book "The Structure of Scientific Revolutions," T.S. Kuhn suggests that incipient paradigm changes in science may be detected by examining certain shifts in emphasis in the literature of a particular field. If we grant his premise, the same possibility may be true in education. An examination of recent literature shows a shift toward a…