In this study, we report on what types of mathematical knowledge for teaching teachers
(MKTT) mathematics teacher educators (MTEs) use and develop when they work together …

The growing national attention to students' learning trajectories (LTs) renews the opportunity
to explore the ways that teachers may use students' thinking in their instruction. In this article …

This research was motivated by the difficulties of junior high school students in linear
equation system material. The focus of this research is to produce the Hypothetical Learning …

This study examines teachers' discussions in a professional development setting to
understand the ways in which learning a mathematics learning trajectory may change …

Guided by the “constructivism in practice” dilemmas framework developed by Windschitl
(Rev Educ Res 72 (2): 131–175, 2002) we investigated the conceptual, pedagogical …

The goal of this study is to characterize how pre-service teachers recognize students'
reasoning, based in the unitizing process, when students solve ratio comparison problems …

We evaluated the effects of a research-based model for scaling up educational interventions
on teachers' practices in preschool mathematics. The original participants were from 106 …

This chapter discusses important background knowledge and research findings from a
variety of disciplines that inform best practices for supporting optimal mathematical …

This study focuses on how prospective teachers learn about students' mathematical thinking
when (i) anticipating secondary students' answers reflecting different characteristics of …

El objetivo de este trabajo es caracterizar el uso de una trayectoria de aprendizaje de la
longitud y su medida como instrumento conceptual para favorecer la adquisición de la …