This paper addresses the relationship between identity and learning and how their integration in adolescence is an important part of short- and long-term developmental dynamics. We discuss how social practice theories can be expanded from a position termed "transformative activist stance" that puts emphasis on collaborative practice aimed at…

This paper examines the extent to which mathematical knowledge, and its related pedagogy, is inextricably linked to the tools--physical, virtual, cultural--in which it is expressed. Our goal is to focus on a few exemplars of computational tools, and to describe with some illustrative examples, how mathematical meanings are shaped by their use. We…