The tracks are now available, and the problem set is due by 11:59pm on Fri 11/22. Each track’s workload is equivalent to that of two problem sets, so plan to spend up to two weeks on your choice of tracks. Be sure to start on or shortly after Fri 11/8; do not wait until the week of the deadline to start.


Did you know that all of CS50’s TFs and CAs are CPR-certified? EMTs are trained for that and more!

EMT invitation