Quizzes
The quizzes are opportunities to synthesize concepts across weeks and solve new problems based on lessons learned.
There are three one-hour quizzes administered during lecture each worth 15% of the final grade. Quizzes are expected to be taken in-person during lecture in Science Center Hall B on the following days:
| Quiz 1 | 2026-09-23T09:00:00-04:00/2026-09-23T10:15:00-04:00 |
| Quiz 2 | 2026-10-14T09:00:00-04:00/2026-10-14T10:15:00-04:00 |
| Quiz 3 | 2026-11-18T09:00:00-05:00/2026-11-18T10:15:00-05:00 |
If you are simultaneously enrolled, you should plan to take the quizzes on the same day in the evening in Emerson 108. If you have an academic or athletic conflict with the make-up exam, please email heads@cs50.harvard.edu.
| Quiz 1 | 2026-09-23T18:00:00-04:00/2026-09-23T19:15:00-04:00 |
| Quiz 2 | 2026-10-14T18:00:00-04:00/2026-10-14T19:15:00-04:00 |
| Quiz 3 | 2026-11-18T18:00:00-05:00/2026-11-18T19:15:00-05:00 |
If you have testing accommodations, CS50 is enrolled in the FAS Testing Center. The student is expected to submit an exam request at least three business days before the scheduled exam, else they are assumed to have chosen not to use their accommodations and are expected to take their exam with the main class.
Quiz 1 will cover material from lectures and problem sets on C and Arrays. Quiz 2 will cover material from lectures and problem sets on Algorithms, Memory, and Data Structures. Quiz 3 will cover material from lectures and problem sets on Python, SQL, HTML/CSS/JavaScript, and Flask.