Enzyme-linked immunosorbent assay (ELISA) is a valuable tool in various chemical and biological fields for investigating the presence and quantity of proteins of interest in given samples. The high importance of the assay makes it widely used in biological research and hence a crucial skill to master for up-and-coming scientists. A major…

Lectures can be enriched by engaging students with active learning components. Classroom response systems (CRSs), which run on the mobile electronic devices of students, make the "clicker" principle more accessible, facilitate active engagement of students in the lecture hall, and are well-suited to promote formative assessment. Opposite…

Serious game-based learning coupled with just-in-time teaching strategies was applied by offering six different questionnaires to evaluate student knowledge about the safety issues and theoretical concepts and protocols of laboratory exercises. The questionnaires were presented with an appearance similar to that of computer games by means of the…

General chemistry II is often a challenging course for first-year STEM students, and many students rely on partial credit to achieve success in the course. However, assigning liberal partial credit to students' work can also disincentivize developing proficiency with the material. Here, we present an alternative specifications-based grading scheme…

The COVID-19 outbreak has altered chemistry laboratory instruction and forced us to reconsider the balance between face-to-face and online teaching. Our students preferred face-to-face teaching (score 4.1/5 on a Likert-like scale) to virtual laboratory exercises (3.4/5) despite the fact that their performance score was actually lower in…

Presented are the combined test results of chemistry students from seven Central Indiana schools on the ACS-NSTA achievement exam, Form 1975, Part 1. Additional variables investigated include sex, grade level, Longeot classification, and an item analysis of the test items. (BT)