The system of interaction analysis employed in this instructional module is "The Instrument for the Analysis of Science Teaching" (IAST), which has fourteen categories: eight for teacher talk, four for student talk, and two special categories. By using the IAST base, the indirect-direct climate of Flanders can still be considered; and, in addition, the types of teacher tactics employed and the kinds of behaviors exhibited by the students can be studied. Participants in this module receive training in using the IAST as a tool for self analysis of their teaching behavior. Training includes the introduction to, application of, and analysis of IAST in varying teaching situations. At the end of the module participants should be able to record and analyze the teaching behaviors actually employed in the classroom; they should also be more sensitive to the types of behaviors they wish to employ in an upcoming instructional period. The instructional component of this module is in the following sequence: Materials List, Pre-Module Low Ratio Teaching Assignment (pre-appraisal), Instructional Activities, Post-Module Low Ratio Teaching Assignment (post-appraisal), and Practice Sessions. The population for which this instructional program has been found to be effective includes preservice and inservice elementary school teachers. (BR)