Freshman computer science has one of the highest dropout rates at a little over 10.5%. We wanted to investigate various approaches to see if we could slow our out-flow of majors.

In addition to considering several curricular changes, we explored using the NSF-sponsored Process Oriented Guided Inquiry Learning (POGIL) approach to new concept formation in a CS 1 class of computer science new freshmen. POGIL is a student-centered learning technique involving small self-managed groups of students using lessons prepared ahead of time where students experience self-discovery, knowledge exploration, the development of critical thinking and active learning, responsibility for their own learning, written and oral communication skills development, and group cohesion with rapid friend development. They also perform self-assessment. The instructor serves as facilitator instead of being the sole knowledge source.

One week of class time was devoted to POGIL activities. The first class period was spent learning the various roles group members assume in a POGIL group. The second day was devoted to using POGIL to learn about propositional logic. The third class period was spent learning about binary trees in general and binary search trees in particular.

Students were observed to be instantly and continuously engaged in all three days of POGIL activities. They commented on how hard they worked and on how much they learned.