13 September 2014

It is always with a sense of unease that I reduce a whole semester’s work into a single letter grade, and to alleviate this feeling, I often pack the gradebook into an interactive graphics system like ggobi or cranvas, and perambulate over it. In the second issue of Chance 2014, I wrote about doing this on grades for a large introductry statistics class using interactive graphics. The class had on the order of 100 students, and grades from exams, homeworks, labs, worksheets, online quizzes and a data analysis project.

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Videos of the exploration are available at:



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