- University of Maryland, Lie Groups and Representation Theory
Seminar, November 2009.

- MAA New England Section Fall Meeting, Distinguished Teaching Lecture & Case Studies Workshop, Western New England College, November 2009.
- Purdue University, Automorphic Forms Seminar & Colloquium,
November 2009.

- University of Connecticut, Colloquium, November 2009.

- Midwest
Conference on Automorphic Forms, Representation Theory, and
Number Theory, Iowa City, October 2009.

- Fourth
Workshop on Multiple Dirichlet Series, Stanford, June
2009.

- UCLA Number Theory Seminar, June 2009.

- Conference on Mock Theta Functions and Applications in Combinatorics, Algebraic Geometry, and Mathematical Physics, Max-Planck-Institut für Mathematik, Bonn, May 2009.
- Workshop on Mapping the High School Algebra Curriculum
(workshop participant/essayist), Institute for
Mathematics and Education, University of
Arizona, February 19-21, 2009.

- Arizona State University, Number Theory Seminar, November
2008.

- Wellesley College, Colloquium, November 2008.
- Conference
on Multiple Dirichlet Series and Applications to Automorphic
Forms, International Centre for Mathematical Sciences,
Edinburgh, United Kingdom, August 4-8, 2008. Notes
of my lecture (pdf file).

- Workshop on the development of Spanish-language case studies
for future high school mathematics teachers and Conference on La
capacidad para enseñar matemática de los futuros profesores de
Enseñanza Pre-básica y Básica (K-8), Universidad de Chile, June
2008. Conference poster (pdf) here.

- AMS Meeting, Session on L-Functions and Automorphic Forms, New York City, NY, March 15-16, 2008.
- Stanford/AIM
Number Theory Seminar, March 7, 2008.

- Workshop on Using Cases to Develop Knowledge for Teaching Mathematics, Institute for Mathematics and Education, University of Arizona. (Chair, organizing committee), February 14-16, 2008.
- San Diego
Joint Math Meetings, AMS
Session
on Automorphic Forms and Related Topics, January 6, 2008
and Panel Member, Making Teacher Preparation Our Business
(sponsored by the AMS Committee on Education), January 8, 2008.

- The Langlands and Geometric Langlands Program, Guangzhou, China, June 2007.
- Conference on Análisis de la Práctica Pedagógica para la Formación de Profesores de Matemáticas, Case Studies Workshops, and Mathematics Colloquium, Universidad de Chile, Santiago, May-June 2007.
- Conference on L-functions and Automorphic Forms (on the occasion of Dorian Goldfeld's 60th Birthday), Columbia University, May 2007.
- Boston University Algebra Seminar, April 2007.
- AMS Meeting, Session on Automorphic Forms and Arithmetic Geometry, Hoboken, NJ, April 2007.
- KIAS-POSTECH-SNU International Number Theory Workshop, Seoul, Korea, December 2006.
- California Institute of Technology, November 2006.
- Princeton University, November 2006.
- Québec-Vermont Number Theory Seminar, October 2006.
- University of Massachusetts, Amherst, Colloquium, October 2006.
- Conference on Zeta Functions, Independent University of Moscow, September 2006.
- ETH, Zurich, Switzerland, September 2006.
- Stanford Workshop on Multiple Dirichlet Series, July 2006. (Workshop organizer; I also provided a list of open problems for workshop participants to work on but did not formally speak. We were trying to keep formal lectures to a minimum in order to encourage maximum research interactions during the workshop.)
- Georgia Tech, April 2006.
- Boston University, February 2006.
- University of New Mexico, January 2006.
- San Antonio Joint Math Meetings: AMS Session on Arithmetic Geometry and Modular Forms; AMS Workshop on TA Development for Faculty; MAA Workshop on Training TAs, January 2006.
- Conference on Modular Forms and Related Topics in Honor of Marvin Knopp's 73rd Birthday, Temple University, January 2006.
- Penn State University (two talks: one on number theory and on one TA development via case studies), November 2005.
- Maine-Québec Conference on Number Theory & Related Topics, October 2005.
- Bretton Woods Workshop on Multiple Dirichlet Series, July 2005 (conference co-organizer).
- Seoul National University, Colloquium and two Number Theory Seminar lectures, May 2005.
- Korean Institute for Advanced Study, two Number Theory Seminar lectures, May 2005.
- 1st KAIST International Symposium on Enhancing University Mathematics Teaching, Korean Advanced Institute of Science and Technology, Daejeon, May 2005 (plenary speaker).
- University of Colorado, Boulder, Kempner Colloquium, April 2005.
- Atlanta Joint Math Meetings, Session on Mathematicians' Work on Mathematics Education, January 2005.
- Brown University, Algebra and Number Theory Seminar, December 2004.
- Brandeis University, Fellowship of the Ring seminar, October 2004.
- Number Theory Conference in Honor of Harold Stark, University of Minnesota, August 2004 (conference co-organizer).
- California Institute of Technology, May 2004.
- AMS Meeting, Session on Automorphic Forms and Analytic Number Theory, Lawrenceville, April 2004.
- Sixth Autumn Workshop of Number Theory, Hakuba, Japan, September 2003. (Three hours of lectures as plenary lecturer.)
- Columbia University Number Theory Seminar, March 2003.
- Boston University Algebra Seminar, December 2002.
- AMS Meeting, Session on Number Theory and Arithmetic Geometry, Boston, October 2002.
- IAS/Park City Mathematics Institute, July 2002.
- Conference on Recent Progress in Langlands Functoriality, Luminy, France, June 2002.
- Conference on L-Functions and Automorphic Forms, Johns Hopkins Univesity, May 2002.
- Harvard University Number Theory Seminar, April 2002.
- Brown University Analysis Seminar, April 2002.
- 16th Annual Workshop on Automorphic Forms and Related Topics, UCLA, March 2002.
- Brown University Algebra Seminar, February 2002.
- AMS-MER Workshop on Excellence in Undergraduate Mathematics, Arizona State University, December 2001 (Plenary Speaker).
- Boston University Algebra Seminar, April 2001.
- Harvard University Seminar on Teaching in the Mathematical Sciences, April 2001.
- Conference on Analytic and Geometric Aspects of the Langlands Program, Tel-Aviv University, March 2001.
- University of California, Santa Cruz, March 2001
- MAA Minicourse, organizer and head teacher, Joint Math
Meetings, New Orleans, January 2001

- Special Session on Analytic Number Theory, Joint Math
Meetings, New Orleans, January 2001

Last Revised: May 30, 2013