Office hours are an integral component of science, technology, engineering, and math (STEM) courses at nearly all colleges and universities. Despite their ubiquity as a support mechanism, there has only been limited work examining how instructors approach office hours and what shapes these approaches. Here, we conduct a phenomenographic study to…

An active-learning concurrent preparatory general chemistry course was adopted to replace a prerequisite course that lacked effectiveness in improving student outcomes. Our previous study showed that the concurrent course increased final exam performance and retention in a cohort of students. This paper studies the course modality impact of the…