Recent research in mathematics education has highlighted the importance of teachers' abilities to professionally notice students' thinking. This study examined what preservice teachers professionally notice during lesson study to further describe their attention to students' mathematical thinking, their interpretations about students' reasoning,…

Observation of fellow educators conducting demonstration lessons is one avenue for teachers to develop sensitivity to noticing students' reasoning. We examined teachers' noticing of children's learning behaviours in one demonstration lesson of the "Mathematical Reasoning Professional Learning Research Program" (MRPLRP). The observations…

Noticing children's mathematical thinking is an important aspect of what teachers need to know. This study explores the role of videocases in supporting preservice elementary teachers' noticing of children's mathematical thinking. Findings from a quasi-experimental study of preservice teachers' engagement with videocases indicate no significant…

In order to better understand how to design hands-on child-computer interaction, we explore how different styles of interaction facilitate children's thinking while they use their hands to manipulate objects. We present an exploratory study of children solving a spatial puzzle task. We investigate how the affordances of physical, graphical…

This article investigates how the goals of participants in a video club evolved and became more shared over time. A video club brings groups of teachers together to analyze video from one another's classrooms (Sherin, 2004). The purpose of the video club the author investigates was to bring teachers together to analyze student thinking, an…