This article focuses on an experienced high school mathematics teacher who changed her practice without participating in planned interventions aimed at producing this change. It reports on the nature of the teacher's change from her perspective and an interpretation and understanding of the change from the researcher's perspective. It illustrates…

Mathematical tasks, centered on arithmetic word problems, are discussed as the basis of an approach to facilitate preservice elementary teachers' development of mathematical knowledge for teaching arithmetic operations. The approach consists of three groups of tasks that allow students to reflect on their initial knowledge, explore arithmetic word…

Describes a problem-solving-oriented teacher-inservice program designed to provide opportunities that allow elementary teachers to focus on personal experience as a way of achieving self-understanding and a way of reconstructing their personal meanings about problem solving and problem-solving instruction. Concludes that the program had positive…