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…

Montessori is a highly individualized pedagogy that prioritizes following each child's individual interests over standardized test scores. This quasi-experimental study compares groups of Montessori students (treatment groups, N = 535-710) with control groups of non-Montessori students, matched through the simple matching method, which controls…

The problem in this study was that despite encouragement from administrators, kindergarten through Grade 8 teachers struggled to use project-based learning (PBL) in a local school in the Association of Independent Maryland and DC Schools (AIMS). Rooted in Kilpatrick's progressive philosophy of education and Piaget's theory of constructivism, this…

Given the importance of modelling in mathematics classrooms, and despite the extensive body of research on teacher support for promoting the mathematical modelling cycle in the classroom, authors have overlooked how teacher support for argumentation can contribute to this cycle. This study is aimed at characterizing teacher support for…

This study explores the dynamics of accountability and responsibility among mathematics educators as they integrate Social and Emotional Learning (SEL) into their teaching practices. Utilizing a hermeneutic transcendental approach, the research examines the lived experiences of teachers, their challenges, and the strategies they employ to balance…

This mixed-methods study examined 220 teachers' responses from a new instrument, the Imagination, Creativity, and Innovation (ICI) Index. ICI Index scores represented teachers' predictions of how students would rate their school's support for student creativity, which was assumed to represent the teachers' perspective of the actual support for…

This study examines the effect of Including Neurodiversity in Computational Thinking (INFACT), a collection of material for teaching Computational Thinking (CT) in grades 3-8. CT has many definitions, but all borrow concepts from computer science to structure problem-solving processes more generally. The materials are designed for use in inclusion…

The consistent prevalence of computer science in our society and the urgent need for STEM professionals in the U.S. raised the need for computer science education at the K-8 level. Researchers have examined the challenges, possible approaches, and contents of teaching computer science. However, there has been limited research on teachers'…

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…

Generative AI, particularly Language Models (LMs), has the potential to transform real-world domains with societal impact, particularly where access to experts is limited. For example, in education, training novice educators with expert guidance is important for effectiveness but expensive, creating significant barriers to improving education…

Engaging key stakeholders, including students into the process of school-based physical activity (PA) intervention planning is considered important. The present study was part of the preparatory phase of the Estonian Schools in Motion pilot programme and aimed to examine students' perspective of PA opportunities in the classroom. Based on 17 focus…

The purpose of this qualitative descriptive study is to examine how 3rd-8th grade teachers describe their use of educational technology for experiential learning in mathematics in the Southwestern United States. David Kolb et al. (2001) experiential learning theory guided the two research questions on the level of use and how teachers described…

Despite the growing body of research on how to support older readers, few studies consider whether U.S. teachers can identify students who have difficulty reading instructional materials across content areas or whether teachers feel like they have the knowledge and resources to support those students. Such information could lay the groundwork for…

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'…