This group of papers was presented as part of a symposium entitled "Classroom Observation of Students and Teachers (COST): A Multiple Payoff Approach to Inservice Training." The first paper, "Films for Inservice Teacher Training: A Miniworkshop," outlines the rationale and development of the film series of which the film, Consequences of Behavior, is a part. The second paper, "Modifying Student Behavior: What Works, and With Whom" presents some of the evaluation research done to date. The third paper, "The Teacher Approval-Disapproval Scale (TADS): From the Mouths of Babes," describes a behaviorally-focused elementary school attitude questionnaire. The fourth paper, "Hyperkinesis in the Classroom: If Cerebral Stimulants are the Last Resort, What Would Be A First Resort?", describes one part of a project designed to compare the progress of hyperkinetic children treated by means of cerebral stimulants with those managed through behavioral counseling of parents and teachers. (Author/HMV)