The model for the graduate paper, turned in at the end of the semester, is the published scholarly article. Students need to have those models in front of them when they are working.
Ironically, the dissertation chapter, in its more bloated form, is not modeled after the scholarly article. It is longer, with too much undigested "research." Students often move backwards in the dissertation, then need to relearn the seminar-paper / article format again as Assistant Professors.