Sionainn Marcoux

Sionainn (pronounced “Shannon”) has devoted her career to providing students with access to high quality educational opportunities. She holds a teaching credential in mathematics and has been teaching for the Princeton Review since 1993. After graduating from college, Sionainn taught math at public high schools in the San Francisco Bay Area. She later designed math software and developed curriculum management systems for educational technology companies. Sionainn is a tutor/instructor of GMAT, GRE, MCAT (Psyche/Soc), SAT, ACT, PSAT, SAT Subject Tests (Math Level 1 and Level 2), and AP (Calculus and Statistics) and has trained instructors. She contributed to several Princeton Review printed books, as well as its digital content. Sionainn majored in psychology at Stanford University, where she was an All-American swimmer, and she earned a Master in Public Policy from Harvard’s Kennedy School of Government. She currently lives in Portland, Oregon with her three children (8 year old boy/girl twins and a 4 year old boy) and struggles to find a little free time to get to the pool for a swim.

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