Hi,

My name is Mark. I am a teacher of Mathematics and Physics and a recently retired Earth Scientist from the NASA - Goddard Space Flight Center. I have BS and PhD degrees in Mathematics from MIT and Cornell. I would like to share my knowledge and understanding of Mathematics, Physics, Earth Science, and Computers with the next generation of students and professionals. I have over 1450 hours of tutoring experience in Mathematics, Statistics, Physics, Technical Writing, SATs/ACTs and relate...