This paper presents a discussion on a new focus area in mathematics teacher education, namely the mathematics teacher in shadow education (SE mathematics teacher). It addresses three issues pertaining to SE mathematics teachers: special knowledge and expertise they need to possess, teacher qualification and selection and SE mathematics teacher…

This study explores narratives about critical moments in mathematics learning written by K-8 pre-service teachers' (PSTs) in the United States over a 20-year period. These critical moments, such as a single memorable task, course, test, or comment from a teacher, had a powerful and sustained impact on PSTs' mathematics identities, which they…

Online collaborative and content-focused professional development (PD) is becoming an increasingly important setting for supporting mathematics teachers' professional learning. The purpose of this study was to better understand the process by which a community emerges in such a PD setting by examining how the cohesiveness of 21 mathematics…

This article illustrates the role of teacher identity in teacher self-efficacy development during initial teacher education. It has been posited that teacher self-efficacy develops on the basis of information accessed through four self-efficacy sources: vicarious and enactive experiences, social persuasion, and physiological and affective states,…

This study investigated the middle school preservice mathematics teachers' conceptualization of what it means for a problem to be mathematically rich and contextually realistic and how their conceptions evolved during a series of professional development activities. Fifteen middle school preservice mathematics teachers were involved in this…

In this study, we address the issue of mathematics teachers' personal and professional responsiveness to changing circumstances, such as the shift in external demands made on teacher practice due to the COVID-19 pandemic. For investigating a such delicate issue, we take a theoretical approach, which is quite novel in the field of mathematics…

Practice-based pedagogies, such as representations of practice and approximations of practice, are increasingly common in mathematics teacher education. More needs to be known about how teacher candidates' (TCs') productions through such activities make visible the resources they bring to the work of teaching. In this paper, we highlight our use…

As content-specific educational coaches, elementary mathematics specialists (EMSs) have emerged as school-based professionals who are needs-driven and work closely with school stakeholders in regard to mathematics teaching and learning. While leading mathematics education organizations have identified the specialized knowledge and skills required…

This paper presents an analysis of how school mathematics credentials, particularly calculus, coupled with elite college degrees can allow for presumed proficiencies, resulting in acceptance to a selective alternative route program (SARP) for secondary mathematics. However, such credentials do not guarantee deep mathematics knowledge nor effective…

This paper explores the nature of prospective teachers' noticing of students' understanding as they analyze and discuss middle school students' understandings of trapezoids in micro-case videos in the context of geometry. In this exploratory study, the data were obtained from eight prospective middle school mathematics teachers through individual…

This study compares web usage data with interviews from 41 participants, who are members of an online professional development site called the "Everyday Mathematics" Virtual Learning Community (VLC), to explore how elementary school teachers learn from classroom video. Web usage data reveal that the commentary surrounding video posted to…

This case study explored Prospective Elementary Mathematics Specialists' (PEMSs) pedagogical practices during a K-5 Mathematics Endorsement (K-5 ME) program, specifically focusing on the authentic residency with mentor sessions. Participants included nine PEMSs, with qualitative and quantitative data collected via individual interviews,…

Given the prevalence of research in undergraduate mathematics education focused on student reasoning and the development of instructional innovations that leverage student reasoning, it is important to understand the ways undergraduate mathematics instructors make sense of these innovations. We characterize pedagogical reasoning about…

This study examines how teachers' discourse moves influence patterns of authority in the mathematics classroom. We identify changes in authority structure in one classroom taught by a primary mathematics teacher in Hong Kong. This teacher participant was one of 32 who participated in a larger teacher-intervention study that aimed to help teachers…

Teacher education programs have a critical role in supporting prospective teachers' connections between theory and practice. In this study, we examined three prospective secondary mathematics teachers' discourses regarding collective argumentation during and after a unit of instruction addressing collective argumentation and ways they…