1. Provide students with a list of characteristics forA/B/C/D/F papers.  Show them an example of an "A" paper and discuss the reasons it got an "A" grade.  Or handout model papers from past semesters without the grades on them, and ask students to discuss why they gave one paper a higher grade.  What elements stood out in each draft?
  2. Pass out copies of the rubric you'll use to grade their papers.  Ask students to fill out the criteria for themselves,using it as a pre-submission checklist. Or allow a half-period of peer review and ask students to use the rubric with each other's drafts.
  3. Show students examples of comments you make on papers and tell them your personal pet peeves.