How can faculty know what the rubric scale proficiency levels represent?

Hovering your mouse over the rubric criteria displays a tooltip with additional information about the rubric scale proficiency levels.

Faculty can see rubric scale proficiency levels for rubric criteria assigned to their classes for the grading period on the Grades & Comments section of the LMS. 

Once on this tab, look for the Qualitative section and hover the mouse over one of the rubric criteria. A small pop-up tooltip appears that displays the rubric scale abbreviations, descriptions, and notes.