New engineering design courses called Engineering Design I and II have already been implemented on approximately 2000 sophomore students since 1996, at the Kanazawa Institute of Technology. In these courses, students carry out their own team project, faculties do not have lectures and written test. So faculties have to know student's individual performance well. We intended to establish the method that evaluates individual student precisely, accurately and fairly. In this paper, we show the information that how to student think about the grading system by author on this course.