Calculus Help Desk  (CHD) and Residential Peer Mentors (RPMs) Spring 2011 The purpose of the CHD is to provide undergraduate consultants who are available in the South 40 area for a quick evening consultation when you run into stumbling blocks in your calculus study or homework.  If you like, you can ask a question and then find a spot in Cornerstone to continue studying or working with friends until other questions come up. The CHD not a place to go expecting a lot of individual time or tutoring, since the consultant may be busy fielding questions from students in a several different courses.  Residential peer monitors bring help into the residential colleges. Times and locations are available on the Cornerstone Academic Mentoring web page.