Yes (in my experience as a med student on path rotations). At the program at my med school the residents get a tray of slides to review, along with pertinent history, and spent a week or two (I think) reviewing the slides and trying to figure out the diagnosis. Then on the unknown conference day, the attending sits down at the multi-headed scope with the interns (and interested students) and asks different people to describe what they see, try to come up with a differential, and ultimately a dx. Lots of discussion, great for learning.
That was my experience as a rotating medical student. Anyone of the more knowledgeable posters in the forum is free to correct me