Discussion forum. The best way to ask a short question about the course materials is via Ed, an online discussion forum where you can ask (and answer) questions. The course staff monitor this forum regularly.

Office hours. For more substantial questions about the course materials, you should attend office hours. You're welcome to attend any office hours listed below, not just those of your preceptor.

[COVID-19 Update] Starting March 22, all office hours will be held over Zoom. See this Ed post for instructions on how to access office hours.

Updated instructions for lab TAs are available here.

Computing lab. Undergraduate lab TAs are available online to help you debug your code, provided you have first made a reasonable effort to identify the bug and isolate the problem. Do not go to the room in the help message below!

This schedule may change. We will update this calendar with the latest information when we need to make scheduling changes. Though last-minute changes are rare, we encourage you to check this calendar again before going to office hours.

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More Help

COS 226 is a challenging course. If you are falling behind, be proactive. Contact your preceptor as soon as possible and schedule a meeting with him/her. In the meeting, review the material and make a plan for success in this course. If you don't feel comfortable talking to your preceptor, contact the co-lead preceptors as soon as possible to arrange to get some help. We will be happy to meet with you. We can also ask your residential college to assign you a peer tutor for this course.