The aim of this study is to better understand how teachers use various embodied semiotic modes -- speech, gestures, gaze, and proxemics -- when they present scientific content to the entire class. To analyse the multimodal practices of these teachers, we integrated the social semiotic theory of multimodality and the joint action theory in…

In this article, we examine the ways in which an ESL instructor constructs contextually relevant meanings through the synchronization of speech and gesture during unplanned vocabulary explanations. Video recorded data are analysed, with focus on an in-class homework review in which students demonstrated difficulty in comprehending several key…