Continuing education students bring with them expectations from previous teaching that challenge the effectiveness of usual teacher evaluation procedures. This paper presents a validated approach to the evaluation of teaching that identifies potential problems with individuals and minority groups of continuing students. This approach can be used during the course to steer teaching back on course before problems arise. The approach, the Three Ability Framework (3AF), results in a single quantitative measure of the quality of teaching that can be used as an administrative decision point. The 3AF feedback form takes only a few minutes to complete. The teacher explains to the students the three abilities research has identified as essential to effective teaching: (1) technical skills; (2) professional competence; and (3) professional attitudes. Students are asked to rate their assessments of each of these areas and their expectations of how the areas should be fulfilled in the course, and instructors rate themselves in each area. Student and instructor ratings are compared (student change rating is subtracted from lecturer change rating), and the resulting number is makes an evaluative decision point. "Zero" would be a perfect indicator of the alignment between student and instructor expectations that is indicative of effective teaching. The method allows frequent assessments over the duration of the course, permitting adjustments when necessary, and it is particularly suited to the evaluation of courses in continuing education. (Contains 35 references.) (SLD)