Virtual Classroom
by Philip B. Stark

Trying to incorporate the power of the Internet in my daily teaching life has led me to write and program a collection of on-line material for teaching our undergraduate lower-level classes (Statistics 2 and 21). The material comprises about 40,000 lines of HTML and 30,000 lines of Java. It includes hypertext with links to an extensive glossary, and embedded Java applets to illustrate elementary concepts such as histograms, scatterplots, regression, correlation, sampling distributions, confidence intervals, Venn diagrams, and various parametric probability calculations. There is also a set of on-line "browsable" weekly assignments that combine Java applets and HTML forms to walk students through experiments and better experience the material. Assignments are graded automatically using server-side scripts, written by Ofer Licht of the Statistical Computing Facility, and the students can view their grades on-line and compare their scores with the overall class performance. The website, which is still under development, has started to attract some attention, including being selected for a link to the Scout Report for Business and Economics (January 15, 1998). If you are interested in accessing these course materials, they can be viewed at www.stat.berkeley.edu/~stark/Teach/SticiGui/index.htm.

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