"PhD Math Teacher; Retired NASA Earth Scientist. I am here to help you."
Hi, My name is Mark. I am a teacher of Math
ematics at Marymount University and a recently retired Earth Scientist from the NASA - Goddard Space Flight Center. I have SB and PhD degrees in Math
ematics from MIT and Cornell. I would like to share my knowledge and understanding of Math
ematics, Physics, Earth Science, and Computers with the next generation...
10+ subjects, including ACT Math, algebra 1 and algebra 2