This study was conducted to determine and examine the understandings and misunderstandings of members of student teaching triads composed of student teachers, cooperating teachers, and university supervisors. These understandings relate to what is perceived to be important in the student teaching experience, and who should be most responsible for each of these areas of import. The purpose of the study was to discover how each individual perceived his or her own role and where areas of agreement or disagreement exist. University supervisors, classroom supervisors, and student teachers (N=517) were asked in a questionnaire to describe their perceptions of role responsibilities and values within the triad. The 396 responses indicated 9 areas of significant perceptual differences according to role. By including comments offered in the questionnaires and follow-up interviews of all triad populations, differences were clarified and suggestions for change discussed. The findings suggest that the student teaching experience is influenced by attitudes of each member of the teaching triad towards each other as they relate to role expectations and responsibilities. (LL)