Pedagogical content knowledge (PCK) is important for teachers' instructional effectiveness. This study investigated the self-reported level of PCK among in-service elementary school science teachers in a municipality in Ghana, examining the overall level of PCK. An In-Service Elementary Science Teachers Self-Reported PCK (IEST-SR-PCK) scale was…

The purpose of this longitudinal study was to explore the development of pre-service chemistry teachers' pedagogical content knowledge regarding the effect of temperature on reaction rate topic as they took pedagogical content knowledge courses throughout the teacher education program. Pre-service teachers' pedagogical content knowledge was…

Despite the substantial progress made to develop evidence-based pedagogical practices that support student learning, many courses are dominated by "traditional" practices such as a passive lecture. Thus, a continued focus on reforming courses is necessary. Here we describe the deliberate practice-driven reform of a large lecture-format…

In chemistry, a eutectic mixture refers to a mixture of two or more components at which the lowest possible freezing point is observed. This phenomenon is covered in a wide range of curricula such as physics, chemistry, chemical engineering, and pharmacy to various depths. Despite the significance of this phenomenon in pharmaceutical compounding…

Wicked problems have been characterised by their high epistemological and axiological complexities. These are the kinds of problems that may invade our classrooms because many of them concern many stakeholders, including our students. Several approaches have been developed to address wicked problems in various contexts. However, little is known…

In the face of accelerating climate change, effective education is paramount to fostering informed citizens and enacting meaningful action. Effective climate instruction contextualizes content so that students are engaged emotionally (affect) and can translate science into action. This paper describes six courses that use integrated approaches to…

Worldwide, education jurisdictions are looking for authentic ways to address First Nations perspectives in the K-12 curriculum, including science education. At the same time, there have been ongoing efforts to integrate authentic and engaging approaches to teaching science, including those that are student-centred, inquiry-based, multimodal, and…

In previous work, we described how three teachers differentially create opportunities for students to act as epistemic agents and to engage in collective knowledge-building work (Alzen et al., 2020). The descriptive nature of this previous research provided information about what variability can look like in classrooms attempting these…

Student participation in the science practices is more than following directions to conduct pre-determined experiments and analyze data with expected solutions. This requires classroom shifts that increase the epistemic agency of students: increase student involvement and authority in developing science knowledge and practices, rather than the…

We review the literature, from 2006 to 2020, focused on the teaching and learning of chemical bonding. The studies included in our review (48 studies set in 19 different countries overall) involved secondary and postsecondary students as well as K-12 teachers and university faculty. We synthesize these studies' findings to provide implications for…

The Next Generation Science Standards (NGSS) demand that science educators shift from traditional to NGSS teaching and learning. The purpose of this qualitative case study was to explore the change process of shifting from traditional one-dimensional teaching to NGSS three-dimensional teaching and learning. A survey was sent to all science…

This mixed methods study explored how elementary teachers reported using a commercially published instructional unit to plan and deliver science instruction in their elementary classrooms. Of particular focus is what elements of the program teachers eliminated during planning and instruction, what outside materials teachers added to instruction,…

The way high school chemistry curricula are structured has the potential to convey consequential messages about knowledge and knowing to students and teachers. If a curriculum is built around practicing skills and recalling facts to reach ''correct'' answers, it is unlikely class activities will be seen (by students or the teacher) as…

This study investigated evidence of how students' mental models of fundamental kinematic relations evolved (i.e., developed cognitively over time) as observed during an introductory course in calculus-based classical mechanics. The core of the curriculum is based on a claim known as Galileo's principle of relativity. The course material comprised…

Increasing access to computational ideas and practices is one important reason to integrate computational thinking (CT) in science classrooms. While integrating CT into science classrooms broadens exposure to computing, it may not be enough to ensure equitable participation in the science classroom. Equitable participation is crucial because…