Slide shows presented with software such as PowerPoint or WordPerfect Presentations can trap instructors into bad teaching practices. Research on memory suggests that slide-show instruction can actually be less effective than traditional lecturing when the teacher uses a blackboard or overhead projector. The author proposes a model of classroom teaching that capitalizes on the advantages of slide shows without the pedagogical disadvantages.
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W. R. Klemm (2007) studied this question.
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