Previous studies have documented the promising results from student-constructed representations, including stop-motion animation (SMA), in supporting mechanistic reasoning (MR), which is considered an essential thinking skill in science education. Our current study presents theoretically and empirically how student-constructed SMA contributes to…

Background: With a growing new materialism paradigm and research on multimodality, there is an increasing attention on the role of material objects in science teaching and learning. However, there is currently no available framework, coding scheme, or method of inquiry to specifically analyze the use of material objects in science meaning-making.…

This is a study intended to address white supremacy in science education. To accomplish this, we describe how one White intern, Boaz, learned to teach science in anti-racist ways. By detailing how whiteness mattered in his learning to teach, we demonstrate that whiteness is potentially constant in White peoples' learning to teach science in…

Short chain fatty acids (SCFAs) are produced in the gut as a result of microbial action on ingested dietary fiber and have been associated with several health benefits. Herein an undergraduate student experiment that uses gas chromatography equipped with either a flame ionization detector or mass spectrometer for the analysis and quantitation of…

When we imagine the work of a data analyst, we often picture meaningful data analysis and beautiful data visualizations. Although that is an exciting part of the job, data analysts actually spend the majority of their time acquiring, cleaning, and preparing data for analysis. This teaching case guides students through some of the most common data…

Since the development of the notion of the teacher-researcher, a range of published action research studies have focused on school-based pedagogy. Scholars agree that action research is an essential tool for teachers to improve their practice, but there is little known about the process underpinning teachers' choice of particular action research…

Assessment plays a critical role in instruction and curriculum. Existing literature on instructors' assessment practices and related factors has been intensively focused on primary and secondary education. This study extended the contexts of previous literature to post-secondary chemistry education by exploring general chemistry instructors'…

Acknowledgement of the limited learning outcomes in our first-year physics lab course, strikingly similar to the observed and reported issues in literature, incited renewal of the course with a focus on developing students' ability to engage in experimental physics research. The "procedural and conceptual knowledge (PACKS)…

Preservice secondary science teachers often experience science learning in narrow and marginalizing ways in their science preparation. These experiences cause harm, particularly for preservice teachers of color. They also limit the disciplinary resources they can develop for later teaching science in ways that value and sustain their students'…

An essential aspect of scientific practice involves grappling with the generation of predictions, representations, interpretations, investigations, and communications related to scientific phenomena, all of which are inherently permeated with uncertainty. Transferring this practice from expert settings to the classroom is invaluable yet…

A comprehensive teaching experiment plan tailored forthird-yearundergraduates has been developed. Initially, instructors synthesize(E)-2-(4-((4-(2-hydroxyethoxy)-3-methylphenyl)­diazenyl)­phenoxy)-ethan-1-ol­(M-Azo-2)monomer as part of the preclass preparation. Subsequently, studentsperform an acylation reaction experiment to prepare an…

This study aimed to develop an instrument with acceptable validity and reliability for assessing two key aspects among science teachers: their self-efficacy in teaching science through an integrated STEM approach (STSIS) and their outcome expectancy when employing this approach (OETSIS), which we refer to as TSTSIS. We administered this tool to…

A new undergraduate thin-layer chromatography laboratory experiment devoted to quantitative determination of disulfiram in Anticol formulation is presented. The proposed activity can be a part of a chromatographic methods of analysis course as well as a general chemistry course. To carry out a quantitative analysis, an image analysis technique was…

Most students enter college without any exposure to polymer science, which leads to the poor understanding and slow implementation of plastic recycling programs in the United States. To address the knowledge gap in chemical recycling, we introduce a 2-part laboratory experiment that was conducted in multiple high schools and public outreach events…

Cultivating students' enjoyment of science is one of the significant aims of science education. However, it seems challenging to achieve this goal in most countries or economies. Using the Trends in International Mathematics and Science Study (TIMSS) 2019 Hong Kong data, this study aims to identify multiple configurations of school conditions to…