Kay Schulze is a Professor of Computer Science at the United States Naval Academy. She received a B.S. from the University of Charleston (Mathematics, 1968), a MS from West Virginia University (Mathematics, 1970), and a MS and Ph.D. from Boston University (Computer Science, 1984, 1989). She was an instructor at Boston University until 1985, when she became an Assistant Professor of Computer Science at the University of Massachusetts, Dartmouth. She joined the Naval Academy faculty in 1989. She is active in the Computer Science Accreditation Commission. Her research interests include intelligent tutoring systems, computer science education, and computer ethics. You may contact her at schulze@usna.edu.

Robert Shelby is a Professor of Physics at the United States Naval Academy. He received a B.S. and M.A. from the University of Texas, Austin (Physics, 1959, 1961) and a Ph.D. from Catholic University (Physics, 1969). He has thirty-nine years of teaching experience at the post-secondary level and has been on the faculty at the Naval Academy since 1965. A long-time member of the American Physical Society and American Association of Physics Teachers, he has been active in physics-education research and development for the last twenty years and has concentrated on the use of classroom communication systems and computer-based tutoring systems for the last seven years. You may contact him at shelby@usna.edu.

Donald Treacy is a Professor of Physics at the United States Naval Academy. He received a B.S. from Boston College (Physics, 1963) and a M.A. and Ph.D. from Princeton University (Physics, 1965, 1969). He has thirty-three years of teaching experience at the Academy. He is a member of Sigma Xi. His current area of research is in methods of improving learning in Introductory-level physics courses. You may contact him at treacy@usna.edu.

Mary Wintersgill is a Professor of Physics at the United States Naval Academy. She received a B.Sc. and D.Phil. from the University of Sussex (Physics, 1974, 1977) in the United Kingdom. She was a Research Associate at Oklahoma State University until 1978 when she joined the faculty at the Naval Academy. Her research interests include intelligent tutoring systems and developments in physics pedagogy, as well as the electrical properties of polymer electrolytes and fuel-cell membranes. She may be contacted by e-mail at mwinter@usna.edu.

Kurt VanLehn is a Professor of Computer Science at the University of Pittsburgh, where he is also a Senior Scientist at the Learning Research and Development Center and Director of CIRCLE: Center for Interdisciplinary Research on Constructive Learning Environments [formerly http://www.pitt.edu/~circle/]. He received a B.S. from Stanford (Mathematics, 1974) and a Ph.D. from the Massachusetts Institute of Technology (Computer Science, 1983). He was a Research Associate at Xerox Palo Alto Research Center until 1985, when he joined Carnegie-Mellon University as an Assistant Professor of Computer Science and Psychology. He moved to the University of Pittsburgh in 1990. His research interests focus on applications of artificial intelligence to education and cognitive modeling. You may contact him at vanlehn@cs.pitt.edu.

Abigail Gertner was a Research Associate at the University of Pittsburgh Learning, Research and Development Center from 1996 to 1999. During that time she was the Project Coordinator for the Andes project. She currently leads the engineering group in artificial intelligence for the Information Management and Instructional Technology Department at the Mitre Corporation. She earned her Ph.D. in computer science from the University of Pennsylvania in 1995. Her primary research area is in student modeling and plan recognition in intelligent tutoring systems. You may contact her at gertner@mitre.org.