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Haase, David G. – Physics Teacher, 2009
When a college instructor goes out of town and must miss a lecture, the standard options are to cancel the class meeting or to enlist a colleague to fill in. In the former case a teaching opportunity is lost; in the latter the substitute may not lead the class in the same way as the instructor. Some students routinely skip lectures by a guest…
Descriptors: Delivery Systems, Lecture Method, Educational Technology, Computer Uses in Education