Issues concerning the development of a teaching evaluation system are considered, along with the use of student ratings of teachers. In addition to briefly reviewing the beginnings of teacher evaluation, the following prerequisites for a successful faculty evaluation system are identified: the cooperation and support of many groups, strong administrative support, faculty involvement, and expert assistance. Three dimensions of teaching effectiveness are distinguished: (1) the structure, organization, and clarity of courses and classroom presentations; (2) student-teacher interaction; and (3) communication ability of the teacher. Research evidence related to student ratings is summarized, and the evaluation system used by the University of Louisville School of Dentistry is described. This system involves course evaluations and student ratings of faculty. A range of activities are assessed, including the use of objectives, testing and grading procedures, instructor assistance in problem-solving, and instructor's attitude toward dental students and the profession. It is emphasized that student ratings are one of many measures that can be used to assess teaching effectiveness. (SW)