Lesson Study is a professional development program, which engages teachers in a collaborative and long-term lesson planning process aimed at improving a single or a group of lessons. In the process, teachers may feel that they are offered three different types of support: social, emotional, and instructional. The purpose of this study was to…

This study examined processes at the core of teacher professional development (PD) experiences that might positively impact teacher learning and more specifically teacher change. Four processes were considered in the context of a PD program focused on student mathematical errors: analysis of students' mathematical misconceptions as a lever for…

Professional development of in-service teachers requires a sustainable and school-based model which will provide them with opportunities for collaboration in building an environment that supports their capacity-building and pedagogical improvement. In this professional development model, teachers are treated as central to the learning process,…

The main goal of the Learning and Teaching Geometry project is to build professional development materials that provide opportunities for teachers to learn about mathematical similarity through the use of videocases, in which specific and increasingly complex mathematical ideas are presented within the dynamics of classroom practice. The central…