During the 1982-83 school year, the Early Childhood Education Branch of the Maryland State Department of Education conducted three inservice conferences for project directors, supervisory personnel, school administrators, and teacher coordinators involved in the Extended Elementary Education Program. The conferences provided information concerning teacher effectiveness and training to supervisory/administrative personnel from local school districts as a means of increasing teacher effectiveness in local schools. Approximately 92 persons from 12 Maryland school districts participated in the conferences, 72 professionals attended one of two regional conferences, and approximately 83 people attended follow-up sessions. To assess the effectiveness of the inservice initiative, interviews by telephone were conducted with a representative sample, stratified by professional level, from each participating school district. Survey questions focused on how inservice information, ideas, materials, and strategies were used by participants; the extent of their use; and observable changes in teacher behavior, if any, that resulted from their use. Overall, participants had extremely favorable views about the impact of the inservice in their local school districts. Although inservice content was reportedly used extensively, the degree to which the inservice increased the effectiveness of teachers was not clear. Data, however, indicated that the most significant impact was on increasing teachers' awareness of ideas, skills, and materials that contribute to more effective teaching. (RH)