January 2006 – present

Private Math Tutor and Private Writing Tutor

January 2002 – May 2013

The University of Texas at Austin, Austin, Texas
Senior Lecturer, full-time

September 1984 – January 2002

The University of Texas at Austin, Austin, Texas
Lecturer

June 1988 – January 2002

Austin Community College, Rio Grande campus, Austin, Texas
Mathematics Professor, full-time

August 1984 – August 1988

Austin Community College, Ridgeview campus, Austin, Texas
Math/Science Division Chairperson

January 1980 – August 1984

Austin Community College, Austin, Texas
Mathematics Instructor and Mathematics Department Head

September 1979 – January 1980

Concordia Lutheran College
Full time College Professor

January 1979 – December 1979

Austin Community College, Austin, Texas
Mathematics Instructor, part-time

January 1977 – December 1978

The University of Texas at Austin, Austin, Texas
Teaching Assistant and Assistant Instructor