SIGMAA TAHSM
(Teaching Advanced High School Mathematics)

Executive Committee 2010-2011

MATHFEST - Lexington, KY

Chair
Caren Diefenderfer, Hollins University, Roanoke, VA
cdiefenderfer@hollins.edu

Chair Elect
Mark Howell, Gonzaga High School, Washington, DC
mhowell@gonzaga.org 

Secretary/Treasurer
David Stephens, Bryn Mawr School, Baltimore, MD
stephensd@BrynMawrSchool.org

Newsletter/Webpage Editor
David Stephens, Bryn Mawr School, Baltimore, MD
stephensd@BrynMawrSchool.org

Executive Committee 2009-2010

MATHFEST - Pittsburgh, PA

Chair
Caren Diefenderfer, Hollins University, Roanoke, VA
cdiefenderfer@hollins.edu

Past Chair
Dan Lotesto, Milwaukee Schools, Milwaukee, WI
dlotesto@gmail.com

Chair Elect
Mark Howell, Gonzaga High School, Washington, DC
mhowell@gonzaga.org 

Secretary/Treasurer
David Stephens, Bryn Mawr School, Baltimore, MD
stephensd@BrynMawrSchool.org

Newsletter/Webpage Editor
David Stephens, Bryn Mawr School, Baltimore, MD
stephensd@BrynMawrSchool.org

Executive Committee 2008-2009

MATHFEST - Portland, OR

Chair
Dan Lotesto, Milwaukee Schools, Milwaukee, WI
dlotesto@gmail.com

Past Chair
David Bressoud, Macalester College, St. Paul, MN
bressoud@macalester.edu

Chair Elect
Caren Diefenderfer, Hollins University, Roanoke, VA
cdiefenderfer@hollins.edu

Secretary/Treasurer
David Stephens, Bryn Mawr School, Baltimore, MD
stephensd@BrynMawrSchool.org

Newsletter/Webpage Editor
Maria Hernandez, The North Carolina School of Science and Mathematics, Durham, NC
hernandez@ncssm.edu

Executive Committee 2007-2008

MATHFEST - Milwaukee, WI

Chair
David Bressoud, Macalester College, St. Paul, MN
bressoud@macalester.edu

Past Chair
Dan Teague, The North Carolina School of Science and Mathematics, Durham, NC
teague@ncssm.edu

Chair Elect
Dan Lotesto, Milwaukee Schools, Milwaukee, WI
dlotesto@gmail.com

Secretary/Treasurer
David Stephens, Bryn Mawr School, Baltimore, MD
stephensd@BrynMawrSchool.org

Newsletter/Webpage Editor
Maria Hernandez, The North Carolina School of Science and Mathematics, Durham, NC.
hernandez@ncssm.edu

Executive Committee 2006-2007

MATHFEST - Knoxville, TN

Chair
Dan Teague, The North Carolina School of Science and Mathematics, Durham, NC.
teague@ncssm.edu

Past Chair
Ben Klein, Davidson College, Davidson, NC
beklein@davidson.edu

Chair Elect
David Bressoud, Macalester College, St. Paul, MN
bressoud@macalester.edu

Secretary/Treasurer
David Stephens, Bryn Mawr School, Baltimore, MD
stephensd@BrynMawrSchool.org

Newsletter/Webpage Editor
Jon Choate, Groton School, Groton, MA

Executive Committee 2005-2006

MATHFEST - Albuquerque, NM

Chair
Ben Klein, Davidson College, Davidson, NC
beklein@davidson.edu

Past Chair
vacant

Chair Elect
Dan Teague, The North Carolina School of Science and Mathematics, Durham, NC.
teague@ncssm.edu

Secretary/Treasurer
David Stephens, Bryn Mawr School, Baltimore, MD
stephensd@BrynMawrSchool.org

Newsletter/Webpage Editor
Jon Choate, Groton School, Groton, MA