Find a university to explore its courses and reviews.
The hardest classes at University of Colorado Boulder, ranked by student-reported difficulty. Plan your schedule around the most challenging courses before registration. Based on aggregated student review data.
Courses with the highest reported challenge levels
19 reviews
Taken a class at CU Boulder?
Help other CU Boulder students decide. Share your honest experience. It takes 2 minutes, it's fully anonymous, and you don't need an account.