Instructor, NSF Alliance for Minority Participation, California State University, Hayward, California, Summer 1996. Led a six-hour-a-day, five-day-a-week, four-week seminar for underrepresented minorities who had already completed a college-level calculus class
Instructor, City College, San Francisco, California, Summer 1991
Graduate Student Researcher supervised by John Rhodes, U. C. Berkeley, Summer 1991, Summer 1990, Summer 1989. Coauthored a manuscript for a graduate-level textbook entitled ``Monoids, Semigroups, and Infinite Groups''
Graduate Student Instructor, U. C. Berkeley, Fall 1988. Led a weekly discussion session and graded computer programs for a junior-level numerical analysis course
Teaching Assistant, Bethel College, North Newton, Kansas,
1984-1988. Led a weekly problem and discussion session for twenty
separate mathematics classes