August-December 2001. Teaching assistant, Environmental History of the Southwest, University of Arizona course GEOS 220. The position involved lecturing on climate change in the Southwest, coaching students and grading their work. Primary instructors: Paul Sheppard and Jeffrey Dean.

January-May 1999, August-May 2000. Teaching assistant, Introduction to Global Change, University of Arizona course NATS 101. Participated in teaching team that emphasized in-class group work. Position involved lecturing on forests and the carbon cycle, mentoring students and grading their work. Primary instructor: Katherine Hirschboeck.

August 1997-May 1998. Teaching assistant for Introduction to Global Change, University of Arizona course GEOS 107. Led biweekly two-hour laboratory/discussion sessions. Prepared and graded lab exercises, lectured on topics including rising carbon dioxide levels, global deforestation and the thinning ozone layer. Primary instructor: Steven Leavitt.

January-May 1991. English-as-a-Second-Language instructor, tutoring individuals in Tokyo, Japan, while on break from field work in China.

August 1990-December 1990. Visiting lecturer, Xi Jiang University, Zhaoqing, China. Lectured on a variety of topics to improve English listening skills and writing ability of 180 undergraduate students who were divided into three Saturday classes of two hours each.