In this article, we examine the promise of a popular set of sentence stems, "I notice" and "I wonder," for fostering productive discussion in an online course for teachers. Drawing on teachers' responses to one another's classroom reflections, we look for evidence regarding how course prompts encouraging teachers to use these…

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…