Purpose: The purpose of this paper is to examine how teachers engaged in curriculum deliberation through lesson study (LS) and how different types of teacher knowledge were elicited, co-constructed and transformed in integrated ways across LS stages. It also clarifies how different school-level orientations influence the nature, depth and scope of…

Purpose: The paper reports how lesson study helped to make the learning of students with limited English competencies visible in "Content and Language Integrated Learning" (CLIL). Design/methodology/approach: The two lesson study cycles took place in a Swiss primary school with a focus on three case pupils each with heterogeneous…

Purpose: Lesson study (LS) is generally regarded as a pathway for teachers' professional development and a method for teachers' instructional research. LS has been regarded as having the potential to drive large-scale reform but little is known about how it does so from a district level. Therefore, this paper aims to reveal how lesson study…

Purpose: The purpose of this paper is to examine how lesson study can lead to teacher learning and improvement of instruction by developing teachers' mathematical-task knowledge and by supporting teachers' selection, modification, and implementation of mathematical tasks. Mathematical-task knowledge includes knowledge needed to use tasks that…