My name is Don and I would be honored to help you achieve your potential in mathematics, the physical sciences, computers, and taking the SAT. I have over twenty years experience in computers and the sciences - with a PhD in computer science, MS in physics, and a triple major BS in physics, mathematics, and French. And I greatly enjoy teaching others - having tutored and taught others at work and church. Having children of my own, I have learned how to relate to where people are in their studies.