Surveyed for their implications on training material development were the training needs of 745 elementary and secondary school teachers and training conditions cited by 40 inservice leaders in 26 school districts. Among the seven clusters of specified teacher needs (including interpersonal communication and administration, assessment and discipline) identified on the Teacher Needs Assessment Survey, developing pupil self and individualizing instruction were designated as the most needed training areas. Questionnaire responses described a wide variety of inservice characteristics including frequency, meeting place, content, and teacher incentives. Analysis of data indicated that inservice topics were usually selected by persons other than the participants, followup and evaluation were inadequate, and there was a need for clearer inservice goals and objectives. Implications for materials development included the need for separate production of inservice and preservice materials, for material design which would allow for individual teachers' needs, and for restricting materials to skill development rather than explication or motivation only. (CL)