345-2899. You are quite welcome to call me, but not after 8:30 pm or between 6 pm Friday and 6 pm Saturday.
My office hours in the calculus lab (which Math 156 students are welcome to attend) are 1:40-2:30 MTWF
Math 156, 7:40-8:30 am every day except Thursday; Math 204, 12:40-1:30 pm every day.
I am usually in my office during working hours as indicated above and will usually (but not always) be willing to talk to students if I am in my office. Don't be shy about asking!
There is a Math Tutoring room across the hall from my office!
Don't be shy about coming into class late or leaving early if you need to. There is no problem about this as long as you are not disruptive. I do not need to know about absences from class unless exams are affected.