An accountability model has been derived from a research based staff development model used in secondary school classrooms. This accountability model contains four components: (1) baseline/pretest; (2) inform; (3) guided practice; and (4) post-test observations. In the first component, teachers are observed; individual profiles of behavior are prepared; change that is needed is assessed and recommendations made; and learning and teaching begin at the level at which teachers are. In the second part, information is provided, theory and practice linked, and understanding checked by eliciting practical examples from participants. The third section, guided practice, provides conceptual units one at a time and helps teachers to adapt these units to their own content and style. Teachers are also assessed, provided with feedback, and supported and encouraged to try new ideas in class every day. In the fourth component, teachers are observed again, a second profile prepared, feedback provided, and the training program is assessed for effectiveness. Tables and figures with original study results are provided. (JMK)