For this article, the development of 1 teacher's pedagogical content knowledge (Shulman, 1986) was tracked longitudinally across 2 years as she taught a new instructional unit in middle school mathematics. Growth in pedagogical content knowledge is characterized as the interanimation of 2 Discourses (Gee, 1999). One Discourse refers to…

Describes a two-year design experiment in which sixth and seventh grade students designed hypermedia documents to be used by their classmates. Consensual patterns of students beliefs emerged. Presents information on how teachers assisted with the longitudinal transitions in students' critical standards for judging research questions and evaluating…

A design context for developing children's understanding of the natural world via designing, building, testing, and evaluation of models was studied. Children were asked to design models of human elbows which provided opportunities to develop their understanding of the relations between mathematics and science through the construction and…

Assesses the cognitive consequences of reflective teaching practices compared to inquiry teaching practices on the acquisition and transfer of LOGO computer programming for 2nd- and 5th-grade students. Finds that children that participated in the reflective context developed beliefs about programming practices that were tightly coupled with their…