P.A.C.E.S. stands for Participation, Appearance, Cleanup, Engineering, and Safety. The author has traditionally used design briefs to set the limits on processes and materials to solve a given problem. The design brief brings out all kinds of "out of the box" thinking, with many correct answers to solve the problem. The P.A.C.E.S. rubric ties the design brief to an open-ended range of possibilities of assessment, from the overall quality of a project to class behavior. The definitions in this article offer a basic guideline to help understand the grading criteria. Also included, is a class activity that leads the students through the process of developing a grading method for project work.