A review of the concept of complex instructional treatments demonstrates that componential analysis is needed to properly identify the effective elements of an instructional system. Research should focus on both the system and the effectiveness of its parts. Research on teaching also requires that the complex interaction of the teacher's behavior…

This experiment on teacher effectiveness focuses on the causal effects of teacher behavior within the classroom recitation. Each of four teachers used one of eight treatments in teaching an ecology course to eight sixth-grade groups. The treatments differed at two levels of teacher structuring, soliciting, and reacting. High structuring consisted…

A description is given of an exemplary program, developed by Claremont Teachers College in West Australia, that involved on-site teacher development to help introduce children in grades 1-4 to historical thinking. The College provided academic staff for the project and assisted teachers by providing advice and materials. The long term objectives…