I have been tutoring off and on for some years. I was a full time computer science teacher at Miami-Dade Community College. While getting my masters at the University of Miami, I taught freshmen, mostly Fortran.
In New Jersey, I tutored at Bergen Community College. I tutored all aspects of the math curriculum.
I have helped 3 adults pass their GRE. I usually insist new students take an online SAT or GRE, before I even see them. I get a good idea of their strengths and weaknesses