Designing a Teacher Learning Sequence for Building on Mathematical Opportunities in Student Thinking (Collaborative Research)

The Learning to Build on MOSTs project is focused on developing secondary mathematics teachers’ ability to enact the teaching practice of building on MOSTs. Previously, we conceptualized high-leverage instances of student mathematical thinking that emerge during whole-class interactions—instances we call Mathematical Opportunities in Student Thinking (MOSTs). We subsequently studied the practice of building that allows one to productively use MOSTs. In this study we investigate how teachers develop the practice of building on MOSTs.