How is the president of the United States elected? Why is this the method used? Is this the best and most efficient way of electing the president of the United States? Questions such as these are well suited for a mathematics discussion that promotes numeracy, because, "notwithstanding the immense value of numeracy for education and vocation,…

To learn mathematical practices, students need opportunities to engage in them. But simply providing such opportunities may not be sufficient to support all students. Simultaneously, explicitly teaching mathematical practices could be problematic if instruction becomes prescriptive. This study investigated how teachers might make mathematical…

This paper explores the potential of mobile devices to support novel forms of mathematics classroom activity. In particular, I consider two salient aspects of contemporary practice with mobiles--networking/communication, and picture taking--and explore technology designs that might exploit their potential for supporting related forms of…