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…

Wouldn't it be great if all your teachers were as good as your best? Teaching is often an isolated profession in which teachers work behind closed doors, doing their own thing. Peer coaching is a collaborative, ongoing process that can increase the effectiveness of all your teachers. This "Focus On" is designed to lead a faculty into the…