Studies discourse cohesion from the perspective of a speech/gesture synthesis. Presents cross-cultural evidence showing the joint contribution made by both speech and gesture to the process of creating discourse topics. Proposes a dialectical model of discourse production. (HB)

This paper suggests a new way to approach the study style in instructional communication. First, the paper reviews and critiques existing approaches to communication style research. Following that it is suggested that a fundamental limitation of existitng approaches is that researchers have typically superimposed conventional criteria for teaching…

This paper analyzes discrepant findings from research on science teacher knowledge and classroom discourse. In new science teachers' classrooms, discourse during laboratory activities differed in important ways from discourse during other types of instruction. Furthermore, teacher subject-matter knowledge had effects that were not predicted by the…