Giving sixth-grade teachers information as to how their pupils described their actual and their ideal teacher on 12 items of teacher behavior significantly changed in the direction of the pupils' initial ratings of their ideal teacher, and also made the teachers more accurate in predicting their pupils' descriptions of the teacher. Subjects of the study were 176 sixth-grade teachers in Illinois who were divided into experimental and control groups. They volunteered and cooperated in response to a series of mailings. (The report contains numerous data tables. In addition, appendixes contained samples of the questionnaires used.) (Author/RT)