Research findings show that inquiry-based science education has positive effects in improving learning of both science content knowledge and scientific inquiry (SI) skills. As a result, various science curricula, including that of Namibia, recommend the use of an inquiry-based approach in science teaching. However, the implementation of an…

This study addresses gaps in the research about the effect of professional development (PD) quality on effective instruction by taking a broad perspective when defining professional learning of teachers and by providing a theory-based explanation for effective instruction. Using a large-scale data set, Teaching and Learning International Survey…

While there is widespread agreement that one-size-fits-all professional development (PD) initiatives have limited potential to foster teacher learning, much existing PD is still designed without attention to teachers' motivations and needs. This paper shows that the strengths and weaknesses of middle school mathematics teachers that engage in PD…

Background: Lack of content knowledge (CK) is problematic in teaching in classroom subject areas and in physical education. There is a dearth of data-based research on interventions aimed at helping teachers acquire CK and, in turn, on the effects of CK on student learning. Aim: To investigate the effect of professional development, in the form of…

Collective approaches to practice development are increasingly common in the teaching profession. Such initiatives frequently involve groups of teachers taking responsibility for introducing, sharing and developing new pedagogical resources and for aiding their integration into existing practices. This article explores teachers' knowledge work as…

A secondary data analysis was conducted using a large dataset from a study related to online professional development for eighth grade teachers of mathematics. Using this data, the paper provides a snapshot of the current state of teachers' knowledge related to proportional reasoning and functions. The paper also considers how teachers' knowledge…

Researchers have recently used traditional item response theory (IRT) models to measure mathematical knowledge for teaching (MKT). Some studies (e.g., Hill, 2007; Izsak, Orrill, Cohen, & Brown, 2010), however, have reported subgroups when measuring middle-grades teachers' MKT, and such groups violate a key assumption of IRT models. This study…

In many innovative science content professional development (PD) courses for teachers, science concepts are situated within pedagogical contexts, or in other words, science content is incorporated within contexts relevant to teaching and student learning. Pedagogical contexts are often used because they are believed to be engaging for teachers and…

A challenge for educational employing authorities is the provision of high-quality, sustainable professional development opportunities that will lead to positive growth in teachers' pedagogical practices. The study reported here sought to devise and implement a model of teacher professional development that would result in such growth by…

The United States government has invested nearly one billion dollars in funding to professional historians and history educators across the country since 2000 to strengthen the teaching of American history in elementary and secondary schools, yet we know little about how these programs impact student learning. Using data from one such Teaching…

This article describes experiences from a professional development project designed to prepare in-service eighth-grade mathematics teachers to develop, explore, and advance technological pedagogical content knowledge (TPCK) in the teaching and learning of Algebra I. This article describes the process of the participating teachers' mathematical…

Using the work of teaching as a central resource, practice-based approaches to teacher professional development attempt to coordinate and link different facets of teacher knowledge to each other and to the settings in which the knowledge is used. Advocates for practice-based professional development argue that learning experiences that are highly…

This document contains the second volume of the proceedings of the 30th Annual Conference of the International Group for the Psychology of Mathematics Education. Conference presentations are centered around the theme "Mathematics at the Centre." This volume features 60 research reports by presenters with last names beginning between Abr…