What constitutes a successful lesson? A considerable body of literature examines instructional talk; however, little attention has been directed to situations in which teacher intentions (as captured by lesson plan) are stymied by unanticipated student response and the teacher must instantaneously reevaluate and revise an intended lesson. This…

Teaching fitness-related knowledge has become critical in developing children's healthful living behavior. The purpose of this study was to examine the effects of a science-based, constructivist physical education curriculum on learning fitness knowledge critical to healthful living in elementary school students. The schools (N = 30) were randomly…

The treatment of errors in mathematics classrooms has gained attention in recent years, with many researchers suggesting that errors should be used as starting points for student inquiry into mathematics. In the study reported in this article, we examined how teachers used discourse around errors to generate inquiry by looking at the treatment of…