This article in the Journal of Geoscience Education describes a project in which students play the role of class lecturer. The purpose of the exercise is to reduce instructor lecture time and increase student involvement in learning about earth system history. Each student researches a specific era of geologic history and then presents their findings to the class, as well as providing a written summary and bibliography of resources used in their research. Rubrics for assessing the student presentations are included in the article.
Full Text of the article is available online.