Evidence-based mathematics interventions are critical for supporting students with mathematics difficulties. In research and practice, collecting implementation fidelity is important for ensuring that all the core components of the intervention are implemented as designed. Historically, implementation fidelity has been defined as multi-faceted…

Integrating digital pedagogy in mathematics can change teaching and learning. Globally, education institutions adopted digital pedagogy during the coronavirus (COVID-19) pandemic. However, mathematics teachers in rural schools encounter many challenges when embracing digital pedagogy. This article focuses on a study of mathematics teachers'…

This holistic, mixed-methods action research case study aimed to determine the influence of professional development on participants' mathematical teaching practices and how the changes influenced students' opportunities for discourse. In this two-year study, participants engaged in two professional development phases and implemented new…

This study aimed to investigate the impact of Learning Trajectories (LT[superscript 2])-based games on the mathematical learning of four-year-old kindergarteners. The research employed the ADDIE paradigm, incorporating a pre-test, post-test, and a control group experimental design. The sample group comprised 30 children--15 in the experimental…

In intervention studies, high rates of "implementation fidelity" are important markers of a study's success; however, the definition of implementation fidelity is both complex and dynamic. In this synthesis, we examined the dimensions of implementation fidelity measured and reported in 99 studies in which researchers utilized a…

Elementary teachers are underprepared to teach mathematics, and there is a lack of field-based support for mathematics-specific pedagogies in the elementary grades. To address this theory to practice gap, we developed an innovative model of fieldwork that draws on the expertise of in-service teachers (elementary mathematics specialists [EMSs]) who…

Introduction: In this paper, we present how seventh-grade students become aware of rational numbers during mathematics instruction through the social process of objectification when comparing two magnitudes. Methods: Theoretical elements of the Theory of Objectification and the Onto-Semiotic Approach to Mathematical Instruction and Cognition guide…

Modeling with mathematics (MP4) is a mathematical practice standard that can be used to engage students in mathematical content standards as well as additional mathematical practice standards. Research has shown the benefits of mathematical modeling (e.g., Aguirre et al., 2019; Cirillo et al., 2016a), but also the challenges teachers can face…

Using Coarsened Exact Matching (CEM), this analysis examined the impact of Zearn Math across 7,116 matched pairs of students in 31 Louisiana parishes. Students who completed an average of 3+ Zearn Math lessons per week during the 2021-2022 school year were compared to similarly matched peers who completed less than 1 lesson per week. Findings…

The purpose of this participatory action research (PAR) project was to support teachers to integrate play as a primary pedagogy in the math program. The theory of action was: If teachers develop a mathematical program integrating play pedagogy, then teacher capacity will expand to support the implementation of play in math instruction. I conducted…

The EU-funded project "Supporting Mathematics and Science Teachers in Addressing Diversity and Promoting Fundamental Values" (MaSDiV) (2017-2020) promoted inquiry-based learning as a pedagogy that supports diverse and multicultural classrooms. This project included the design of a professional development (PD) programme for teachers.…

Since its first notable appearance in the "Second Handbook of Research on Mathematics Teaching and Learning," the phrase productive struggle has garnered support from a few, yet very influential, educational researchers. However, since the phrase was popularized by Hiroko Warshauer in 2011, examinations of the productive struggle have…

The purpose of this action research study was to develop and implement common formative assessments for mathematics teachers to inform instructional practices. To address the purpose of this action research study, the following research questions guided this study: 1. How can the district instructional leadership team support professional learning…

For California's community colleges, fall 2019 marked the deadline for implementing the state's historic developmental education legislation, Assembly Bill 705 (Irwin 2017). AB 705 drove transformative changes in community college math and English programs as colleges implemented research-based placement policies designed to maximize students'…

The aim of this study is to develop a descriptive framework for teacher educators to assist teachers to plan and realize modelling implementations in their classrooms and for researchers to describe and analyse how modelling is implemented. The planning process and implementations of 12 middle and high school mathematics teachers who conducted…