This article reviews the international literature on video viewing in teacher education and
professional development. Two hundred and fifty-five articles were collected, summarized …

In this chapter we focus on the concept of proof, which is important for students'
mathematical education but also hard for teachers to teach and difficult for students to learn …

This article situates comic-based representations of teaching in the long history of tensions
between theory and practice in teacher education. The article argues that comics can be …

We elaborate on the notion of the instructional triangle, to address the question of how the
nature of instructional activity can help justify actions in mathematics teaching. We propose a …

In this theoretical paper, we present a framework for conceptualizing proof in terms of
mathematical values, as well as the norms that uphold those values. In particular, proofs …

The unique characteristics of tablet PCs promise important benefits for education. Yet, little is
known about the rationale underlying teachers' decisions concerning their educational uses …

This study incorporated multiple methods of analysis to explore the productivity of future
teachers' reflections after viewing animations as representations of algebra instruction. Two …

The study examines geometry teachers' video club discussions in a two-year professional
development intervention that combined lesson study, video clubs, and animation …

In the past decade, there has been important progress in the development and validation of
video-based instruments that enable the systematic assessment of teaching competence …

Building on our earlier work conceptualizing teaching as the management of instructional
exchanges, we lay out a theory of the practical rationality of mathematics teaching—that is, a …