This article addresses how elementary school teachers approach "Bildung" when planning and monitoring the in-school- and at-home work of 6- and 9-year-old pupils. By examining a national sample of 204 weekly work plans designed by teachers in Norwegian schools, we investigate whether and how curriculum practices acknowledge principles of…

We describe a new approach to the use of video-based technology for conducting controlled experiments in classroom contexts. Specifically, we describe a process for editing video recordings of live classroom lessons to create multiple versions, such that only one aspect of the lesson is systematically varied. Other aspects of the instruction are…

Experimental evidence has shown the effect of peer-group argumentation on scientific concept development. However, questions regarding how and why it happens remain. The aim of this study is to contribute, with experimental evidence gathered in naturalistic settings (classrooms), to the understanding of the relationship between peer-group…

On the basis of the construct of "discursive focus" by Sfard (2000), this study explores how students' attention is brought to new mathematical content in whole-class interaction between the teacher and the children. In a sixth-grade lesson introducing the concept of constancy of proportion, we analyzed the progression of social…