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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

Learn more about the history of ERIC here. PDF icon

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Peer reviewed Peer reviewed
Rowan, Katherine E. – Written Communication, 1988
Offers a new theory of explanatory discourse intended to guide analysis of and stimulate improvement in explanations designed for the mass audience. Identifies research literature relevant to improving the quality of written explanations, organizes findings on effectiveness that resolve controversies in the literature, and suggests principles for…
Descriptors: Communication Research, Expository Writing, Instruction, Instructional Improvement