Students observe (and understand) how the teacher responds to a typical rough draft. Having seen the teacher's criteria at work, they then use that example to respond to each other's drafts. Again, such responses are often tied to some sort of response sheet or form. One way or another, students should end up with written feedback that can be consulted after class.

Here, the teacher locates a typical rough draft and uses class time to model the most useful response to that draft. An overhead projector is one sample way to handle this modeling.
  

Other response models:  

Response Grid  

Peer Response