Language is critical in the mediation of scientific reasoning, higher-order thinking and the development of scientific literacy. This study investigated how an exemplary primary science teacher scaffolds and supports students' reasoning during a Year 4 materials unit. Lessons captured on video, teacher and student interviews and micro-ethnographic…

Video-based classroom research is opening-up exciting new insights into how teachers generate productive opportunities for student engagement in quality learning. This research reveals the extent to which effective teachers draw on a range of multimodal representations of science phenomena and learners must use these as semiotic resources for…