David Koss

B.S. Comparative Literature; B.A. Organizational Psychology

Hobart College, Columbia University


University of Denver


David Koss has been providing test prep and academic support to a wide variety of K-12 students in the Bay Area since 2008. He has tutored and academically mentored students from some of the Bay Area’s top private and public schools including St. Ignatius, Bay School of SF, Sacred Heart Prep (Atherton), Lowell High, and Lick-Wilmerding High School. David also believes in helping the under-served youth in the community and has partnered with SF and Oakland Unified School Districts and organizations such as Boys and Girl Club, First Graduate, Tutorpedia Foundation and Aspire Education to deliver high quality instruction and academic support. He has been a one-on-one tutor, small group instructor, workshop facilitator, and has also managed an after-school homework program at Orinda Intermediate School.

David began his test prep experience working for The Princeton Review teaching the SAT to American and international students while living in Madrid, Spain and then continued once back in the United States. His breadth of coverage ranges from all levels of test prep (HSPT, SSAT, ISEE, SAT, ACT, GRE, GMAT) to academic support including AP exams (English Comp, Spanish). David has worked with all age levels from kindergarten through 12 grade. His academic specialties include test prep, math, Spanish, and English literature and writing. He is fluent in Spanish. David really enjoys helping each student live up to their full potential and excels in developing a personalized learning program that will focus on the specific needs of each student.

Jackson MacFarlane

University of Auckland (New Zealand)

B.Sc., Geophysics and Applied Mathematics

Karen Wen

Dartmouth College

B.A. Psychology, minor in Sociology

Robin Glover

Princeton University

B.A. Philosophy

Katie Lawrence Levy

Princeton University

B.A. Political Science

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