... Subjects that I have taught or tutored include: Math, physics, chemistry, astronomy, photography, MS Office, AutoCAD, graphics, and electrical and computer engineering. ... I am a Delaware Certified Teacher in Computer science, physics, and mathematics (highly qualified. I taught eleven years at a math-science public charter high school. ... I have a Ph.D. in engineering from Carnegie-Mellon University and spent many years in industry solving difficult, one-of-a-kind problems before becoming a teacher.