I let them bring in an index card. In the first half of the semester, I did 3 Powerpoint lectures, and most of them copied the words off the slides onto their cards and then, in some cases directly onto their test with no evidence of thinking or understanding. I actually got the sentence "As is well-known, "tangles" is an important word to understand in relationship to hamster fur."
So, do I try to reteach the material? Go over in grotesque detail how to write an essay on a college test and re-give it? Let them go down in flames?
I have never seen it this bad, and I am sincerely at a loss.