The most 'fair' math classes (specifically, I'm thinking of algebra and calculus type courses) I have been in, allowed a good in-between. Basically, you were totally allowed to use a Calculator, even one with a built-in CAS, but you -had- to show the in-between steps if you did so on a test.

This was pretty useful in it's own right, as you at least had a way to check your work, and frankly it was extremely useful for helping me solidify knowledge in those fields. [0]

Of course, AI muddles this, since it can explain the steps for you.