This paper investigates the unexpected phenomenon that we call multiple documentational genesis, which occurred during a professional development program for in-service mathematics teachers, guided by researchers in mathematics education. It involves the proliferation of uncoordinated teaching materials created by teachers for their students based…

Purpose: The purpose of this study is to explore mathematics teachers' collaboration within their professional learning communities (PLCs), and to gain insight into how the teachers developed their collective efficacy through it to focus on improving student learning. Design/methodology/approach: Using a qualitative approach, data were collected…

The main purpose of this study was to explore how engaging in lesson study improves secondary mathematics teachers' effective lesson implementation to support students' learning better. The research was conducted in Jimma City, Ethiopia, and employed design-based research with qualitative data collected from two secondary schools and 12…

Lesson study has received significant attention as a model of professional development among mathematics teachers. Evidence highlights its effectiveness in improving pedagogical practices and student learning, however, less is known about the predispositions which may encourage teachers' participation in Lesson Study or the impact of participation…

In this article, we use narrative inquiry to examine one teacher's experiences of participating in an inquiry-based teacher writing group. Narrative inquiry centers teachers' stories, revealing the complexities of teaching and writing identities. We argue that, despite the "cover story" of a binary writing identity, teachers' stories…

Professional Learning Communities (PLC) have been used increasingly in designing and discussing teachers' professional development, but how PLC are organised and framed differ between contexts. There is a lack of meta-level studies that aim to define and compare different ways of organising PLC. In this literature review of 32 studies,…

We present a model for professional development of instructional faculty. Though initially conceived for accreditation compliance as a credentialing process for adjunct faculty, this project led to increases in participants' collaboration on lesson design, investment in curricular decisions, and adoption of active learning methods. In this paper,…

Despite the complexity of facilitating professional development (PD) and growing attention to supporting facilitators, few tools exist for facilitators to engage in ongoing inquiry into their practice. In this article, we offer a practical measure, the Collaborative Professional Development Survey (CPDS), designed to provide facilitators with…

This paper addresses implementation with respect to the professional development (PD) of teachers of mathematics and the educators/didacticians who work with them, through an "inquiry-based" developmental model. In contrast with a PD model in which educators show, guide or instruct teachers in classroom approaches and mathematical tasks,…

Purpose: This study aimed at exploring mathematics teachers' reactions, learning, school leaders' support, and the use of the lesson study for transformative assessment (LSforTA) program ideas in practice. Design/methodology/approach: The LSforTA program was new and therefore, a local and grounded approach was needed to examine teachers' knowledge…

Purpose: The purpose of this study was to explore middle and secondary mathematics preservice teachers' (PST) perceptions of the benefits, challenges and impacts of implementing lesson study. Design/methodology/approach: This paper presents a single case study in the university context. Embedded units of analysis included a group of middle and a…

Purpose: The authors investigate the use and potential of a theoretical combination of Realistic Mathematics Education (RME) and the Theory of Didactic Situation (TDS) to support Lesson Study (LS) in upper secondary mathematics. Design/methodology/approach: Case study performed by university researchers, based on theoretical analysis and case…

This article describes a collaborative self-study of seven early career mathematics teacher educators. Our collective group sought to improve our practice in, and enhance transparency around, supporting prospective teachers as they engaged in equity-based mathematics pedagogies. The collaboration evolved into a critical friendship and provided a…

Although the effects of Lesson study (LS), a teacher collaborative professional development approach, on teacher professional learning and students learning have been widely documented, the theories for understanding of LS has just emerged as a research field. Interconnected Model of Teacher Professional Growth (IMPG) and Documentational Approach…

Purpose: The aim is the introduction of lesson study (LS) in geometry in Malawi secondary schools supported by a teaching framework that includes a focus on language responsive teaching. Design/methodology/approach: The study reports an LS on geometry for professional development (PD) of secondary teachers. Data analysed includes lesson plans,…