Teachers are evaluated daily by their students. By examining students' criteria for teacher evaluation, teachers are able to broaden their existing base of understanding and develop a greater perception of the complex dynamics of the classroom. This study was conducted to evaluate students' comments regarding "good" teachers to determine whether the students employed consistent, distinct criteria for evaluation. A class of sixth-grade middle school students (N=22) were interviewed individually to determine their perceptions of good teachers. Primary questions were: What do you think a good teacher is? What do you expect from teachers? and What advice would you have for beginning teachers? Three distinct themes regarding the efficacy of teachers emerged from students' comments: (1) instruction; (2) personality; and (3) classroom management. The comments indicate that students are actively assessing teachers according to independently derived discrete and consistent criteria. Frequency of comments in distinct areas and percentage of students commenting in each area are displayed in tabular form. (LL)