At Ohio State, the calculus series and physics are known to be weed out classes. Many engineers choose to take those classes at Columbus State to avoid the negative impact of taking them at OSU on their gpa. My daughter’s calc 2 class, for example, had typical mid-term average and median grades in the 60s. Several of her friends had to withdraw from the class to avoid failure. There was a very slight curve on semester grades at the end.