This paper addresses the subject of the semiosis process in the transactions between teachers and students about the knowledge at stake in science education. We present a conceptualisation of these transactions as a joint action between students and teachers. This conceptualisation enables us to understand the semiosis process as it unfolds during…

This interpretive case study investigated how a fifth-grade teacher's social practices with visual and linguistic signs positioned her students (10- and 11-year-olds) to take up particular modes as they constructed digital compositions. The context of the study was a suburban public school in the northeastern United States. Analysis was threefold.…