Below are frequently asked questions (FAQs) specific to CS50x. For FAQs specific to edX, see https://www.edx.org/student-faq.

Does CS50x have deadlines?

Only one, when the course itself ends! You are welcome to take CS50x at your own pace, so long as you submit nine problem sets and submit a final project no later than 31 December 2014, per the schedule.

Does CS50x offer ID-verified certificates of achievement?

CS50x doesn’t offer ID-verified certificates of achievement through edX, but CS50x does offer a CS50 Certificate as well as course credit from Harvard Extension School.

See this chart to compare options.

If I finish the course before 31 December 2014, will I receive an Honor Code Certificate before 31 December 2014?

Yes, Honor Code Certificates will also be generated on 2 June 2014 and 3 September 2014 for students who finish the course before 31 December 2014.

How can I hide CS50’s Facebook Group from my newsfeed?

If you joined CS50’s Facebook Group but don’t want to see new posts in your newsfeed, hover over any of CS50’s posts in your newsfeed until screenshot appears in the post’s top-right corner, then select Unfollow CS50 from that menu, per the below. You’ll still be in the group, so you can still visit it at https://www.facebook.com/groups/cs50 anytime you’d like. Note that old posts won’t disappear from your newsfeed (unless you remove them manually), but new posts will no longer appear. CS50 will thus gradually disappear from your newsfeed as other updates appear.

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How can I play videos faster or slower?

If using Chrome, Firefox, or Safari (i.e., a browser that supports HTML5 and MP4), you should see a SPEED control below each video, per the below. If not, your browser might not support different speeds, in which case you can download the video (as via the blue links beneath it) and use a client-side player like VLC, whose Playback menu should allow you to alter playback speed. Beware, though, David talks fast at 1x, let alone 2x!

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How can I turn off notifications from CS50’s Facebook Group?

If you joined CS50’s Facebook Group but don’t want to receive notifications about it, simply visit https://www.facebook.com/groups/cs50/, click Notifications at top-right, and then select Off, per the below. You’ll still be in the group, so you can still visit it at https://www.facebook.com/groups/cs50 anytime you’d like.