Examined was the possibility that the language teachers use to communicate science content may provide the context in which students formulate a world view of science. Results are presented and the implications of these results for teacher education programs are discussed. (Author/CW)

Investigated changes that occurred in sixth- and seventh-grade teacher and student discourse when teachers endeavored to implement extended teacher wait-time in a sequence of seven lessons related to probabilistic reasoning. Results indicated that teacher wait-time increased from an average of 1.9 to 4.4 seconds during the lesson sequence. (JN)