(from Carnegie Mellon University - The Eberly Center) Creating and Using Rubrics. A rubric is a scoring tool that explicitly describes the instructor’s performance expectations for an assignment or piece of work. A rubric identifies: criteria - the aspects of performance (e.g., argument, evidence, clarity) that will be assessed, descriptor - the characteristics associated with each dimension (e.g., argument is demonstrable and original, evidence is diverse and compelling), and the performance levels - a rating scale that identifies students’ level of mastery within each criterion. In addition, rubrics can be used to provide feedback to students on diverse types of assignments, from papers, projects, and oral presentations to artistic performances and group projects. Rubrics provide many benefits for both the instructor and the students.