An interdisciplinary course called "The Chemistry of Poisons" was created, featuring organic chemistry, biology, pharmacology, and toxicology content. This exploratory chemistry elective course was created by an instructor with a background in synthetic organic chemistry and a teaching assistant with a background in pharmacy practice.…

Place-based education has traditionally had a limited focus on mathematics, and critical mathematics education often lacks explicit attention to place and space. We explore integrating theories of place, spatial justice, and critical mathematics education. To begin, we consider various frameworks of place--including Indigenous, urban, and critical…

The study was a comparison of general students of promise affect and mathematical students of promise affect after doing a mathematical modeling activity. Participants? gender (n=160), in grades 7-8, were nearly equal in number (81 girls & 79 boys). After completing a Model-eliciting Activity (MEA) in groups of three, participants completed…

This study reports an analysis of how pre-service teachers (n=34) made sense of fraction division with remainders using pictorial modeling strategies, and how small-group and whole-class discussion helped them develop conceptual understanding. One and a half class sessions were video recorded, and 12 interviews were conducted. Results indicate…

In response to a need to equip youth to become successful contributors to our growing digital economy, educators and researchers are exploring ways to incorporate computational thinking (CT) for all across curricular domains. In this paper, we take a place-based approach to examine how and what CT practices youth learn through designing mobile…

This Teaching-Research article contains a Pre and Post observation of class discourse from two instructors applying constructivist principles in their classroom to support student insight and shared construction of knowledge before and after the COVID-19 pandemic necessitated on-line learning. One goal of this article is to present the…

Using a cluster-randomized controlled trial research design, this study investigates the effect of the first year of a three-year teacher professional development program on grades 1 and 2 student achievement in mathematics. Although the findings reported in the present report do not meet the standard cutoff for statistical significance (e.g., 95%…

Objective: Our objective was to evaluate the efficacy of the Sitting Together and Reaching to Play (START-Play) intervention in young infants with neuromotor disorders. Method: This randomized controlled trial compared usual care-early intervention (UC-EI) with START-Play plus UC-EI. Analyses included 112 infants with motor delay (55 UC-EI, 57…

This study analyzed design and technological issues encountered by online course instructors as they taught 120 online courses while working with a designated instructional designer. Having developed the courses and having had them approved in compliance with a set, standardized rubric, implementation of the 120 courses brought out issues that…

In this follow-up article, the authors explain that when technology is integrated in an equitable manner and with due regard for professional learning, the affordances of Web 2.0 technology and interactive devices allow teachers to not only promote procedural fluency but also to develop students' conceptual understanding, reasoning and…

This study addresses the development and evaluation of the Physics Problem-Solving Taxonomy (PPST), comprising five levels: retrieval, diagnosis, strategy, conceptual, and creative thinking. The taxonomy draws on Bloom's revised taxonomy in the cognitive domain, the Types of Knowledge Taxonomy, and the Problem-Solving Taxonomy in engineering. The…

Picture this: a PhD chemist, PhD science educator, and a preservice Latina elementary educator walk into an aftercare program for primary and intermediate students from a rural school. These students are identified as low income and at risk and therefore eligible to participate in this school-provided aftercare. While across the state, these same…

The application of ethnomathematics and mathematical modelling allow us to see a different reality and give us insight into mathematics accomplished holistically. In this context, a pedagogical action that connects ethnomathematics and the cultural aspects of mathematical modelling with its academic features is referred to as ethnomodelling. This…

The purpose of this study was to examine the epistemological beliefs of middle school students in rural area and their attitudes toward solving mathematical problems according to gender and class level variables. It was also necessary to determine whether the epistemological beliefs of middle school students in rural area had predicted their…

In this article we present the results of a study focused on engaging students in argumentation to support their growth as mathematical learners, which in turn strengthens their science learning experiences. We identify five argumentation categories that promote the learning of argumentation skills and enrich mathematical reasoning at the…