There are a few different ways to reach your instructor. First, instructors list their contact information on the course syllabi (phone, email, office hours). Second, you may contact the department assistant to help you reach your instructor.
For CSL, LSI, LSE,SCU, SCG courses, contact Marc Schell: email@example.com or (773) 325-4228
For ECE, EE, PE, SEC, MGU, MGG or T&L courses, contact Nicole Nudo: firstname.lastname@example.org or (773) 325-8634
For A&S, BBE, or CS courses, contact Karlee Johnson: email@example.com or (773) 325-4806