In a world facing complex global challenges, citizens around the world need to be able to engage in scientific reasoning and argumentation supported by evidence. Chemistry educators can support students in developing these skills by providing opportunities to justify how and why phenomena occur, including on assessments. However, little is known…

Writing instruments, such as pens, are ubiquitous in the classroom, but their functionality is largely for one purpose: they are used to represent ideas and record information on paper. However, by replacing the conventional ink in a pen with easy-to-synthesize conducting polymer-based inks, it is possible to change a simple writing utensil into a…

The problem of this study was the lack of problem-solving skills in early childhood, mostly in developing countries including Indonesia. This study examines the effect of the scientific approach-based learning process on problem-solving skills of early childhood and analyse the effectiveness of scientific approach-based learning to improve problem…

This study investigated the effect of in-service training in the use of the ripple tank equipment on science teachers' pedagogical content knowledge (PCK) about the topic of waves. Three Grade 10 Physical Sciences teachers participated in this qualitative case study. The Refined Consensus Model informed the conceptual framework of this study,…

The paper describes our research aimed to verify the durability of pupils' initial ideas and concepts on the issue of acids and bases. First, we mapped their existence among primary school pupils and then compared them with the ideas of secondary and university educated adults. It has been confirmed that some initial ideas are very lasting and are…

The purpose of this research was to identify physics concepts embedded in "moke" making process. The research was conducted in Munerana village, Flores Island, East Nusa Tenggara province, Indonesia. The research data were mainly obtained through in-depth interviews and direct observations at the location of "moke" making…

Students may have some confusion understanding certain physical concepts and principles because of their abstract nature. Using analogies is one of the useful methods to help them more easily grasp abstract concepts to promote conceptual understanding. Bilaloglu classified analogies in four groups: (a) simple analogies, (b) storified analogies,…

This paper shows how two distinct but related models can be used to bring out the essential physics of heat flow in one dimension. The first is a simple step-wise procedure using "SMath Studio," while the second is an electric analogue using a basic RC ladder connected to an Arduino microcontroller. Both models can be demonstrated in…

A belief in teleology is often suggested to be a barrier in children's science education. Many studies have catalogued children's use of teleological explanations, but fewer have developed approaches to tackle children's use in scientific contexts. This paper reports two studies that utilised dialogic interventions alongside Concept Cartoons to do…

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…

With an awareness of the considerable discomfort of graduate students in grasping the crux of key concepts of voltammetry and its variants, I present an inexpensive and user-friendly hands-on setup based on the fabrication of a rotating platinum electrode to facilitate teaching the tenets and applications of hydrodynamic voltammetry (HV). Readily…

A laboratory project to introduce upper-level undergraduates to Pd-catalyzed C-N [sigma]-bond forming reactions is described. The exercise involves evaluation of monodentate phosphine ligands and solvents for the Buchwald-Hartwig coupling of 4-chloro-or 4-bromo-anisole with morpholine. Students gain experience in the synthesis of a biarylphosphine…

This paper reports a demonstration of a 90 min on-demand class where a chemical experiment is performed to educate nonscience majors on surfactants. First-year undergraduate students perform the water ball in a water bottle experiment at home and learn about the structure and properties of organic compounds in the demonstration. The experiment is…

The study aims to learn that they want to reflect on their reflective thoughts and reveal how they reflect what they have learned. Reflective thinking, one of the higher-order thinking skills, enables students to learn more easily and permanently. Students with high reflective thinking skills will be more successful both in their academic and…

This research aimed to explore the conceptual structure of chemical equilibrium in upper-secondary school students using factor analysis. Research on chemistry education has shown that chemical equilibrium is an important but difficult-to-understand topic. Exploring the conceptual structure of chemical equilibrium among students will help…