PhD Chemist & Math Expert | Patient Tutor for STEM & Test Prep

Hi, I'm Donnie. I'm a PhD chemist from UC Berkeley with a passion for making complex subjects feel approachable and clear. My goal is to help students build a deep, fundamental understanding so they can solve problems with confidence and curiosity. With perfect scores on the quantitative sections of the SAT and GRE, I also specialize in effective test preparation. Subjects I Teach Math: Pre-Algebra, Algebra I & II, Geometry, Trigonometry, Pre-Calculus, Calculus Science: Chemistry (all ... Read More >>