Calls to advance students' ability to engage in mathematical reasoning practices including conjecturing, generalising and justifying (CGJ) place significant new demands on teachers. This case study examines how Mathematics Studio provided opportunities for a team of U.S. middle school teachers to learn about these practices and ways to promote…

The "GeoLiteracy for English language learners" (ELLs) program is a curriculum that enhances reading and writing skills while teaching geography content for US students in kindergarten through eighth grades. The program includes 85 lesson plans that address all US national geography standards, a quarter of which address environmental…

For those who are committed to Lesson Study as a means of developing teacher capacity and bringing about innovation of mathematics teaching and learning, there is value in looking at related strategies, now widely in use in several countries, which aim to achieve similar goals. In this paper, three related strategies will be examined alongside…