-6 been written as training materials for acquiring competencies will need serious evaluation. Statement of Problem In Florida, the initial clarification of competencies for middle school teachers began in 1971 with the development of a catalog of teaching competencies (60:3). Training materials in the form of modules were designed for each of the competencies. This study was conducted to help develop personnel assessment techniques regarding one of these specified competencies, namely, "Constructive Interaction." It is related specifically to the area of using personal knowledge of students. The purpose of this study was to determine whether using the module, "Using Personal Knowledge of Students," which is one of the Florida Modules on Generic Teaching Competencies, would effect a change in middle school teachers' behavior when measured by an observation system and student questionnaire. To evaluate the effectiveness of this training material, the study attempted to answer the following questions: 1. Did teachers attain skills which the material was designed to teach?