文摘
By continuing a contrast with the DNR research program, begun in , I discuss several important issues with respect to teaching and learning mathematics that have emerged from our research program which studies learning that occurs through students¡¯ mathematical activity and indicate issues of complementarity between DNR and our research program. I make distinctions about what we mean by inquiring into the mechanisms of conceptual learning and how it differs from work that elucidates steps in the development of a mathematical concept. I argue that the construct of disequilibrium is neither necessary nor sufficient to explain mathematics conceptual learning. I describe an emerging approach to instruction aimed at particular mathematical understandings that fosters reinvention of mathematical concepts without depending on students¡¯ success solving novel problems.