The following research report documents a professional development that focused on promoting understanding of algebraic learning progressions across vertical teams of elementary and secondary teachers. Analyzing quantitative data from the pre and post MKT assessment and qualitative data from lesson reflections and final course reflections,…

In Yucatec Maya middle schools in the Yucatán, math scores are low and drop out rates are high. Although addressing larger social and economic causes may ameliorate these issues, improving math instruction may be a more immediate, feasible approach. This ethnographic, mixed-methods study explores community approaches to problem-solving relevant to…

Detailing is a linguistic tool for mathematical argumentation in which given mathematical information is operationalized through one's warrants to support a claim. Recent literature suggests that students' detailing is related to their early algebraization. This study examined 168 elementary students' use of detailing in two mathematical…

This research report presents the final year results of a three-year research project on computational thinking (CT). The project, funded by the National Science Foundation, involved training teachers in grades four through six to implement Scalable Game Design and LEGO® EV3 robotics during afterschool clubs. Thirty teachers and 531 students took…

Research (for example Ball, 1988; Philippou & Christou, 1998) have linked teachers' attitudes with classroom practice in teaching mathematics. Previous studies have identified and examined the relationships between different components of teachers' attitudes (Nisbet, 1991). However, a particular criticism of these studies is the lack of…

In this mixed methods study, we use positioning theory to analyze teachers' professional discussions about students' mathematical work over the course of 60 hours of professional development focusing on a learning trajectory. After identifying a category of speech actions that suggested student learning is limited by their age or grade level, a…

This research report presents the results of a STEM summer program on robotics and game design. The program was part of a three-year study funded by the National Science Foundation. Children in grades four through six participated in a two-week summer camp in 2015 to learn STEM by engaging in LEGO® EV3 robotics and computer-based games using…

Scholars posit that descriptive education research that focuses on the instructional dynamic between teachers and students is perhaps one the most salient research topics that can improve learning and teaching. This case study seeks to describe prospective teachers' mathematical affect as they engage in "rehearse teaching" in TeachLivE™,…

This mixed-methods study examines effects of implementing a mock edTPA task on prospective elementary teachers' perceptions of teaching effectiveness. Results from the Mathematics Teaching Efficacy Beliefs Instrument document a significant change in participants' beliefs that they can effectively teach mathematics. Qualitative results illuminate…

This mixed methods study explored elementary teachers' (n = 73) experiences with and perspectives on the newly implemented CCSS-Mathematics at a high-needs, urban Professional Development School in a state where roll-out of the standards has been fraught with opposition. Analysis of the survey, questionnaire, and interview data reveals the…

The purpose of this study was to examine teachers' implementation of a specific mathematics curriculum and how their conceptions influenced this implementation. An innovative, powerful tool, known as "teacher logs," was used to examine teachers' implementations of the curriculum; a survey was used to study teachers' conceptions related…