Advising for Priority Registration begins one week prior to the first registration week (in Fall, this is around October 1; in Spring, it is mid-March). The schedule of classes is also published at this time, though it may still require some updates.
Appointments: Due to high demand for advising, appointments during priority registration advising are reserved for math major business. Schedule an appointment here: https://goo.gl/MK5GQX
Enrollment issues/questions: Students who have questions about enrolling in a math class may stop by our Academic Office (the counter at room 108 of the Math building) during business hours for assistance. If you have questions about enrolling in a course that does not have the "MATH" prefix, please contact the offering department.
Walk-ins for math minors and majors: Math minors and majors who need only 5-10 minutes for questions may stop by to talk with an advisor during walk-in advising hours. Availability for walk-ins is posted in the appointment calendar linked above, here: http://math.arizona.edu/~varecka/calendar.html, and on paper outside of our advisors' offices (Math building rooms 221 and 217). If an "Open for Walk-ins" sign is posted, walk-ins are in progress! Walk-ins are first-come, first-served (no appointments). There may be a wait at times.
Email: Many questions may be answered by email: firstname.lastname@example.org
Knowledge base: and some are answered in our Knowledge Base: http://mathcenter.math.arizona.edu/support/home