Mark Sullivan
Educator, mathematician, standardized test nerd. Helping students find a tailored path to success on the GMAT, GRE, or EA.
University of Washington
Shoreline Community College
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Work Experience
Professor of Mathematics and Statistics
Shoreline Community College
September 2011 - Present
Interviewer
Taught all levels of college mathematics, particularly Calculus I-IV, Linear Algebra, Differential Equations, and 100- and 200-level Statistics courses. Led the effort to switch core courses to a co-requisite model to better meet the needs of students. Rebuilt the college's Statistics curricula to use (free) Open Educational Resources, saving our students tens of thousands of dollars every year on textbook costs.
GMAT/GRE/EA Instructor, Senior Curriculum Developer
Manhattan Prep
January 2010 - May 2026
Interviewer
Helped thousands of students reach their GMAT, GRE, or EA goals through classes, tutoring, and coaching. Managed MPrep's GMAT Post-Exam Assessment program. Regularly assisted in curriculum review and update, particularly during the GMAT's switch to the Focus Edition. Built MPrep's Advanced GMAT Course and the Kaplan/GMAC Business Fundamentals Statistics Course.
Education
University of Washington
Masters, Mathematics
2006 - 2009
California Institute of Technology
B.S., Mathematics
2002 - 2006