In prior work, we fit the mixture Rasch model to item responses from a fractions survey administered to a nationwide sample of middle grades mathematics teachers in the United States. The mixture Rasch model located teachers on a continuous, unidimensional scale and fit best with 3 latent classes. We used item response data to generate initial…

Few studies have elaborated on how different types of integration can support teachers' learning and build their capacity to teach for the enhancement of students' STEM competence. Teaching in a STEM education context requires mathematics teachers to be able to effectively choose, design and implement appropriate tasks in their classes. Given the…

This qualitative study examined how prospective mathematics teachers attend to, interpret, and respond to student misconceptions through providing them a video-case-based professional development environment. A sample of 30 prospective teachers attending an elective course was asked to watch video cases about student misconceptions related to the…

In this paper, I examine deficit talk, utterances that depict students and/or families based on their perceived deficits, in an equity-oriented professional development (PD) setting. Researchers often attribute deficit talk by mathematics teachers (MTs) to their biased beliefs and perceptions. From an interactional approach, namely conversation…

This study focuses on a lesson study adaptation for bridging prospective teachers' experiences in a methods course and their field experiences in a teacher education program in Puerto Rico. We ask, "what opportunities for teacher learning emerge during discussions in lesson study?" Two lesson study teams of secondary mathematics…

This study articulates the epistemological support of reflective practices for the professional practice of crafting mathematics problems in realistic contexts. The data were collected from 15 middle school pre-service mathematics teachers in two semesters as they were generating problems and engaging in three reflective practices, which served to…

This article reports on a second national survey of higher education institutions in the USA to answer the question "Who teaches mathematics content courses for prospective elementary teachers, and what are these instructors' academic and teaching backgrounds?" and addresses valuable information not collected with the first survey…

Pedagogical beliefs are a critical factor in terms of integrating technology into teaching, but very few technology acceptance models (TAMs) have considered them. Hence, this study aims to extend the TAM by incorporating pre-service teachers' conception of teaching and learning. The revised model examined the influence of pre-service mathematics…

Noticing is a skill that is not overtly observable yet is consequential to effective mathematics instruction. Researchers have found that prospective and practicing teachers can learn to notice, but little focus has been given to those who teach teachers to notice. The purpose of the study was to characterize mathematics teacher educators'…

In this study, we sought to identify how feedback about classroom observations affected novice university mathematics instructors' (UMIs) teaching practices. Specifically, we examined how a Red-Yellow-Green feedback system (RYG feedback) affected graduate student instructor (GSI) scores on an observation protocol (GSIOP). The protocol was…

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…

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…

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…

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…