We discuss an original study and two replications conducted over 18 years examining the impact of Teacher Study Group (TSG) in Vocabulary, a professional development (PD) approach for improving pedagogy and student learning. Study 1 focused on the design and development of the PD and included a small-scale randomized controlled trial to assess the…

The aim of this longitudinal research is to examine the development process of scientific and consistent knowledge structures of first, second, and third-grade students in middle school within the concepts of melting and dissolution according to conceptual change theories at the end of the education and training processes carried out in…

With large-scale wicked problems threatening our world, the integration of sustainability into teacher professional learning is systemically lacking in the United States. The purpose of this case study was to understand the impact of a multi-session, sustainability-related professional learning program on twelve PreKindergarten-8th grade educators…

The incorporation of metaverse technology in education, particularly within standardized state educational frameworks, holds promise for significant improvements in learning outcomes. This study aimed to assess the effectiveness of integrating an online metaverse platform into state educational services, thereby fostering the development of…

This study explores teacher talk in the early phase of a project in a Norwegian elementary school where Lesson Study is used as a method for professional development. The study focuses on inclusion and aims to explore what beliefs about student needs and teacher role and responsibilities become evident, and how these beliefs can challenge…

The purpose of this longitudinal study was to critically evaluate the updated Turkish reading curricula to determine whether they enable teachers to design instructional sequences that are highly cognitively demanding. This study was designed as a qualitative inquiry using document analysis to estimate the pedagogically oriented intellectual…

School districts continue to strive to enhance students' academic achievement. Various studies and literature highlight the significance of the role of non- academic subjects, which in Ontario, Canada, are referred to as learning skills. Teachers in Ontario are mandated to report on six learning skills three times in a school year within their…

Interpreting change in Body mass index (BMI) among youth by comparison to growth charts can be difficult because of maturation-related changes. The aim of this paper was to evaluate the utility of several alternative methods for assessing change in BMI among children. Participants included 1,615 children measured for stature and body mass in first…

This study aimed to describe 1-year changes in students' vocabulary in written narratives. Secondary aims included examination of accuracy and the relationship between lexical diversity and achievement. Participants included 749 students in first through eighth grades. Within-subjects 1-year change in diversity, productivity, and accuracy was…

The purpose of this single descriptive case study was to describe how an externship program in the central United States impacts K-8 teachers' investment in and integration of work-based learning (WBL) practices in the classroom. The need to investigate how best to encourage teachers to buy into WBL is driven by misalignment among teacher…

Within educational research, there has been an increased interest in recent years to develop learners' language awareness (LA) in the context of plurilingual education. Recommendations and intentions are given pointing to the benefits, but there are few concrete tools for how it can be carried out in practice. The article seeks to contribute to…

A theoretical framework grounded in constructionism and pragmatism theories supported research on learning by doing. This framework underpinned the purpose of this qualitative case study to explore how K-8 STEM teachers facilitated projects utilizing innovative technologies to solve community-based problems. The problem was a lack of connection…

Mathematics classrooms in which students engage in argumentation constitute a favourable context to analyse how teachers recognize and incorporate student contingencies. Through exploratory case studies, we examined three mathematics lessons in which teachers support argumentation in contingent situations triggered by student errors. Teachers'…

Thriving is a developmental process that is shaped by previous and current interactions within developmental contexts. We hypothesized that academic performance in the school context will positively predict thriving in young adulthood. Data of N = 2,043 students from Zurich were assessed with standardized tests in Grades 1, 3, 6, and 9. Results…

The purpose of this project evaluation was to assess the impact of data-based individualization (DBI) on the mathematics achievement of students with intensive mathematics learning needs, including students with disabilities. The evaluation study used a cluster randomized trial in which elementary schools were randomly assigned to treatment using…