Sections

When do sections start?

Sections will start the week of September 7 (Week 1).

How do I know what section I am in

You can see your section assignment on the CS50 Dashboard

What are the section times and locations?

All sections will take place over zoom. Your TAs will provide you the link ahead of time.

The complete list of sections is below (all times on this table are Eastern time). 2-hour less comfy section are intended for students with no programming background who are nervous about the class; 90-minute more comfy section are intended for students with any programming background at all, who are feel confident about the class, or who generally feel comfortable with math and other quantitative subjects.

Remember that section is required, so you need to be available at one of these times and you must stay for the entire time each week. Also remember that you must complete the pre-section quiz before your section starts. You will normally start on your pset during section, so we cannot offer sections later in the week without putting some students at a disadvantage.

Section Time and Comfort Level Teaching Fellows
201 Tue 9:25am - 11:15am Eastern Less Comfy Sanchita Kedia & Victoria Stevens
202 Tue 9:25am - 11:15am Eastern Less Comfy Kelly Wei & Masayuki Nagase
203 Tue 9:25am - 10:55am Eastern More Comfy Andy Pantoja-Valerio & Vincent Schaffer
204 Tue 1:30pm - 3:20pm Eastern Less Comfy Allie Liebmann & Bernardo Eilert-Trevisan
205 Tue 1:30pm - 3:20pm Eastern Less Comfy Ileana Valdez & Jeff Mandell
206 Tue 1:30pm - 3:00pm Eastern More Comfy Harry Jain & Jack Adam
207 Tue 1:30pm - 3:00pm Eastern More Comfy Justin Sung & Robert Luo
208 Tue 3:30pm - 5:20pm Eastern Less Comfy Abraham Mensah & Andrew Zheng
209 Tue 3:30pm - 5:20pm Eastern Less Comfy Graham Hardcastle & Kevin Rono
210 Tue 3:30pm - 5:00pm Eastern More Comfy David McCowin & Greta Browne
211 Tue 3:30pm - 5:00pm Eastern More Comfy Brooke Alviar & Christie Yu
212 Tue 7:00pm - 8:50pm Eastern Less Comfy Jonathan Xu & Shayna Sragovicz
213 Tue 7:00pm - 8:50pm Eastern Less Comfy Reese Wynn & Spencer Streslov
214 Tue 7:00pm - 8:30pm Eastern More Comfy Michael Zhou & Youngmin Shin
215 Wed 3:00am - 4:50am Eastern Less Comfy Alden Tan & Neel Malhorta
216 Wed 9:25am - 11:15am Eastern Less Comfy Jessica Pan & Siena Cizdziel
217 Wed 9:25am - 11:15am Eastern Less Comfy Katerina Robles & Steven Reilly
218 Wed 1:30pm - 3:20pm Eastern Less Comfy Megha Joshi & Masfi Khan
219 Wed 1:30pm - 3:20pm Eastern Less Comfy Lukas Corey & Max Model
220 Wed 1:30pm - 3:00pm Eastern More Comfy Chad Palmer

How do I know which comfort level to pick

See the advice above and make whichever choice feels right at the moment. We’ll let you ask to switch comfort levels for a couple of weeks after sections start so you have time to discover which comfort level is right for you.

How do I sign up for section or request a time change?

If you have not yet signed up for section, or you would like to change sections, complete the section sign-up form by so we can process the changes on Mon, Sep 14 ahead of the Week 2 section. Make sure to give your preference for every section time of both comfort levels. Also make sure to give the specific reason for each time conflict, such as the course number of a conflicting course. If you are requesting a time change, make sure your current section is not one of your preferred times (it’s fine to make it an “ok” time); our sectioning algorithm will never move you from a preferred time of the correct comfort level to a different preferred time. It will attempt to move you from an “ok” time of the correct comfort level to a preferred time.

After Sep. 13, you will have an additional two weeks switch comfort levels: until .

Why aren’t we using Preference Selection?

We don’t use the registrar’s preference selection system because it can’t take your preferred comfort level into account, nor is it open to most graduate students. We have about 50 graduate students that cannot access preference selection.