I. Introduction
Most course instructors care about their students learning and therefore appreciate feedback from the students. If that feedback occurs during class, then the student can obtain an instant response to assist with their learning experience, plus the other participants can also learn from that exchange. Most educational research shows that active discussions during class improve the learning experience of the participants. Unfortunately, active participation during a class is a challenge for multiple reasons discussed in the literature below, including limitations and personal preferences of everyone involved. Therefore, active and engaged learning is an ongoing educational research topic.