...I have been a geophysicist, a money manager, and entrepreneur, but my true calling is teaching mathematics, which I have been doing as a full-time tutor since 2008. I have worked primarily with high-school and college age students, in algebra, geometry, trigonometry, pre-calculus, and calculus ABC. I also do test preparation for the SAT, ACT, GRE, and GMAT tests. (read more)