The correct use of micropipettes has been investigated in an undergraduate, introductory lab experiment intended for chemistry and biology majors. This lab experiment involves the use of micropipettes for accurately mixing, transferring, and applying a specific amount of dye to a cotton bandana. The data resulting from this experiment is a color…

The unplanned shift to online instruction due to the COVID-19 pandemic challenged many instructors teaching large-enrollment courses to design learning environments that actively engaged all students. We looked at how one instructor used her instructional team--a group of student assistants with diverse, structured responsibilities--to adapt her…

This article looks at the effects of environmental factors such as classification, residence location, and employment status of Hispanic students who unsuccessfully completed first-semester general chemistry (Chem I) at a Hispanic-Serving or emerging Hispanic-Serving Institution. Students' automaticity skills in arithmetic and quantitative…

Concept maps are powerful tools used to reveal challenges in students' learning. However, their use introduces complexities when a large group of students' conceptualizations need to be examined. In this study, concept maps of 344 general chemistry students were analyzed after grouping them based on achievement in chemistry, math proficiency, and…

Organic reaction mechanisms are often represented by the electron-pushing formalism and reaction coordinate diagrams. These representations pose a challenge to students because valuable information is encoded within each representation, and students must know how to reason about mechanisms using both. Hence, it is important to understand whether…

In order to fully appreciate the interdisciplinary nature of energy resources, there is a need to understand pertinent issues from other viewpoints besides a purely chemistry perspective. In this paper, the teaching of cost-benefit analysis (CBA) and business databases as part of CM4282: Energy Resources at the Department of Chemistry, National…

Comprehensive community development programs in a university provide the opportunity to bring awareness to diversity, inclusion, and equity in students' research projects. Unfortunately, the Indonesian higher education system is not yet fully inclusive of all of these issues. Students competed in a Student Creativity Program (PKM) project with…

To develop competency in science practices, such as data analysis and interpretation, chemistry learners must develop an understanding of what makes an analysis and interpretation "good" (i.e., the criteria for success). One way that individuals extract the criteria for success in a novel situation is through making social comparisons,…

Development of cognitive skills is critical for developing the right conceptual ideas in chemistry. Atomic structure, bonding, and associated properties are taught as parts of high school chemistry courses worldwide. The cumulative build-up of misconceptions about the periodic table is to blame for students' poor performance on atoms and…

This study aimed at determining the category and analyzes the mental models of the students from three senior high school clusters (low, medium, high) on the solubility and solubility product topic, knowing students' opinions on chemistry subject, knowing learning methods and assessment that teacher used in solubility and solubility products…

Restrictions on movement during the COVID-19 pandemic led to assessment being conducted online, which gave students opportunities to use internet search engines during examinations. We found that in some cases internet searches resulted in characteristic incorrect responses, and around one third of students entered these answers to examination…

The purpose of this study was to find out the influence of the integration sequence of interactive simulation on the construction of the scientific explanation of buffer solutions. This study was conducted with 30 pre-service science teachers. The control group was randomly assigned to study with lecture first and then interactive simulation-based…

Inspired by existing literature indicating that reading literacy is significantly associated with scientific reasoning and chemistry conceptual understanding, this quasi-experimental study explored the effectiveness of reflective reading of scientific articles on student inquiry performance. A total of 134 10th graders from southern Taiwan were…

The attractive photophysical properties of luminescent nanoparticles have prompted numerous studies on their synthesis and biological applications. Due to the complexity of components, sizes, morphologies, and strong light scattering of the nanoparticles the absorption spectrum alone is not enough for characterising and analysing the real…

This research focused on the impact of research- and assessment-based instruction on senior high school students' achievement in selected chemistry topics. A 3 × 2 × 2 pre-test and post-test control group in a quasi-experimental research design was used on a population of Grade 11 chemistry students in Ojo Local Government Area of Lagos state. Two…