College instruction aims not only to expand students' content knowledge, but also to help students develop practical skills, such as the ability to think critically. This study was conducted in a chemistry course for non science majors offered as part of a liberal education core curriculum at a large public university in the Midwest. Students…

Problem-based learning (PBL) is one of the active learning models that supports flexibility and creativity in learning, and takes individual differences into consideration. The basic principle of PBL is to make students come face-to-face with conditions that could be similar to real ones in their professions. This objective is accomplished by…