Principal Investigator, Oregon Mathematics Leadership Institute Partnership, 2004–2009, National Science Foundation funded Mathematics Science Partnership Teacher Institute project.
Faculty Director of the Oregon State University’s Mathematics Learning Center, 1997– present
Faculty Director of Oregon State University’s Math Excel Program (based on Uri Treisman’s Emerging Scholars Program model), 1998–present
Editorial Panel Member, Journal for Research in Mathematics Education, 2004–2006
Associate Editor for School Science and Mathematics, 1998–present
Guest co-editor (with Marvin Druger) of October/November 2004 special theme issues of School Science and Mathematics (Collegiate Mathematics and Science Teaching).
Managing editor for Research in Collegiate Mathematics Education, Volumes I–III, CBMS (Conference Board of Mathematical Sciences) Issues in Education, edited by A. Schoenfeld, E. Dubinsky, and J. Kaput. American Mathematical Society, 1993, 1996, 1998.
Co-editor (with P. Dunham), of “Connecting Research to Teaching" a regular feature department of the Mathematics Teacher, 1998–2000.
Co-chair of the College Board-Mathematical Association of America's Committee on Mutual Concerns, 2000–2006.
Chair of the AMS/MAA Committee on Reasearch in Undergraduate Mathematics Education,1997–1999
Member of the Research Advisory Committee of the National Council of Teachers of Mathematics, 1998–2000
Chair of the Development Committee for the College Board's Advanced Placement Program in Calculus, 1998–2002, (Member 1995–2002).
Excel Strand Co-Leader (with Tom Stone), Oregon Collaborative for Excellence in the Preparation of Teachers, 1998–2002
Faculty Fellow for Center for Learning and Teaching in the West (CLT-W) in residence at University of Montana, 2002–2003