Artificial intelligence (AI) has made remarkable strides in recent years, finding applications in various fields, including chemistry research and industry. Its integration into chemistry education has gained attention more recently, particularly with the advent of generative AI (GAI) tools. However, there is a need to understand how teachers'…

Teachers' reflections on their practice are a powerful tool for measuring and supporting their professional knowledge. Pedagogical content knowledge is one of the most influential domains of teacher professional knowledge. This multiple-case study investigated the topic-specific pedagogical content knowledge (TSPCK) components that Zambian…

This study aims to examine pre-service science teachers' (PSTs') model-based (MB) content knowledge (CK) and knowledge of students' understanding (KSU) of chemical bonds. The participants of the study consist of 229 senior pre service science teachers. The study is a case study from qualitative research designs. The data of the study were…

Questioning is a critical instructional strategy for teachers to support students' knowledge construction in inquiry-oriented science teaching. Existing literature has delineated the characteristics and functions of effective questioning strategies. However, attention has been primarily cast on the format of questioning like open-ended questions…

This study addresses suggestions for analyzing science teachers' pedagogical content knowledge (PCK) components and their interactions and these suggestions are expected to facilitate the analysis of science teachers' PCK, resulting in more accurate representations of PCK. Knowledge of the science curriculum, knowledge of students' understanding…

Proton nuclear magnetic resonance ([superscript 1]H NMR) spectroscopy is an essential characterization tool for organic chemists widely taught in the undergraduate chemistry curricula. Previous work has focused on how students advance from novice to expert in interpreting [superscript 1]H NMR spectra. However, we need to know more about how…

It is a truth of today's world that there is a growing investment in advancing technological opportunities in education. The literature contains a substantial quantity of research on the integration of digital educational settings that contribute to the development of higher education institutions. However, actual data linking key factors like…

Teacher knowledge is vital to provide meaningful learning opportunities. In this case study, a secondary education teacher's knowledge about how to teach the concept of ecosystems from a river is explored. A category system drawn from the literature about science teacher knowledge was used for the analysis. Science teaching requires teachers to…

Mechanistic explanations, aiming to disclose details of entities and their activities, employ the act of unpacking which, inherently and paradoxically, produces explanatory gaps--pieces of undisclosed, undetailed mechanistic information. These gaps, termed explanatory black boxes, are often perceived as counterproductive to the teaching of…

The early years of teaching are important for science teachers, but little is known about how science teachers develop professionally in their early years. This mixed methods study took a longitudinal view of the early years of teaching. Following 95 secondary science teachers over a 5-year period, this study examined the beliefs, pedagogical…

High school science teachers are a unique subset of teachers with distinctive PD needs in content, pedagogy, and technology, yet there is scant research about PD from the perspective of secondary science teachers. This qualitative research study used narrative research methods with grounded theory to explore how a group of seven high school…

This study examines Chinese primary science teachers' professional learning experience in a web-based community of practice established and run by practitioners, with support from teacher researchers. Over time, it has grown into a preferred knowledge-sharing base for primary science teachers of the region and gradually gained national…

Pedagogical content knowledge (PCK) refers to the content-specific knowledge that teachers use to promote students' learning of specific subject matter. PCK comprises multiple knowledge components that interact with each other when enacted in teachers' instructional practices. For many years, researchers lacked a robust methodological approach to…

This dissertation study uses an alternative dissertation format to deliver two separate but interrelated studies. As a whole, the dissertation is connected by a single overarching research question: "What are the characteristics of effective, meaningful, and equitable science instruction through modeling and how do teachers' pedagogical…

One of the United States' higher education system's most important tasks is properly preparing elementary teachers to teach science. Teachers' ability to use their science subject matter knowledge (SMK) to effectively develop pedagogical approaches can significantly contribute to their students' engagement in science and motivation to pursue…