Metacognition is an important skill for undergraduate chemistry students, but there has been scant research investigating chemistry instructors' perspectives of metacognition and the development of their students' metacognition. Since undergraduate instructors have a wide influence over what happens in their courses, it is crucial to investigate…

Students commonly find specialist scientific language problematic. This study investigated developments in chemical language usage by six "non-traditional" students over the course of 1 to 4 years. The students participated in semi-structured interviews and were asked to explain specific chemical scenarios. Interviews were transcribed…

In the USA, Organic Chemistry I is a gateway course for undergraduate students seeking careers in medical- and health-related fields. Estimates of failure and withdrawal rates are approximately 40% at some large, public institutions and higher for specific segments of the student population, such as ethnic minorities, those of low socio-economic…

For some time now, chemistry has not had a good reputation in society. The population identifies this discipline with industries and pollution, while its positive contributions are usually ignored. This fear of chemistry may affect the opinion of society toward not only science, but also the scientific work itself. To assess the prevalence of this…

This research focuses on chemistry teachers' enacted pedagogical content knowledge (ePCK) in equilibrium in chemical reactions. The enactment dimension of this pedagogical content knowledge (PCK) encompasses enacted knowledge and skills as well as those embedded in practice concerning the Refined Consensus Model of PCK, the most recent PCK model…

To help students acquire mathematics and science knowledge and competencies, educators typically use multiple external representations (MERs). There has been considerable interest in examining ways to present, sequence, and combine MERs. One prominent approach is the concreteness fading sequence, which posits that instruction should start with…

This study took 'context' as a focal point in the context-based approach and its investigation was anchored on an analytical framework, which is composed of three dimensions of context: origins, intentions, and occasions. Content analysis was employed as the research methodology with 878 contexts identified from 96 copies of awarded chemistry…

Research suggests that systems thinking is beneficial to education and it has been proposed that training students using systems thinking techniques may enhance their abilities to understand and solve some of the global grand challenges that society currently faces as outlined by the United Nations Sustainable Development Goals. However, before…

Solid lipid nanoparticles (SLNs) are exciting nanoparticles used for transporting therapeutic drugs into an organism. In this laboratory work, a simple experiment is performed to introduce master's students into the field of nanotechnology, here applied to health including the applications in the healthcare/pharmaceutical and cosmetic industry.…

In contrast to a macroscopic solid, the color and spectroscopic properties of gold nanoparticles change with size. Here, we propose a teaching platform for high school students (hereafter defined as students, attending secondary school in Europe, preparatory high schools in the US, or any educational institution of a comparable level) that…

Infrared (IR) spectroscopy is a vibrational spectroscopic technique useful in chemical, pharmaceutical, and forensic sciences. It is essential to identify chemicals for reasons spanning from scientific research and academic practices to quality control in companies. However, in some university degrees, graduate students do not get the proficiency…

COVID-19 has thrust educators into a period of uncertainty, complicating conventional ways of teaching and learning. We suspect that the pandemic has magnified the challenges that some high school teachers already experience, particularly when they are the sole chemistry teacher at their school. The pandemic has likely inhibited collegial…

Teaching chemistry as a practice rather than as a mere collection of facts demands that teachers modify their practices, particularly their approach to formative assessment (FA). In this study, we investigated how teachers' FA practices changed as a result of their participation in a professional development program designed with a Chemical…

In this laboratory experiment, students evaluated three silver(I) complexes as potential additives for dental adhesives based on bacterial growth inhibition, heat stability, water insolubility, and cost-effectiveness. Each student prepared and analyzed a cyanoxime ligand and its corresponding silver(I) complex. Students characterized the…

A comprehensive undergraduate experiment about extraction, separation, and identification of essential oils (EOs) from a natural plant is described. "Acori tatarinowii" Rhizoma (ATR) was used as the raw plant material. Two devices (Soxhlet and Clevenger) with different extraction principles were employed for EO extraction from ATR,…