Attempting to improve student participation, this semester I decided to tie grade curving to class attendance and participation in my large introductory operations class. I suggested that students who attend classes and participate regularly would receive a bonus of up to 1% of their final grade. To avoid the operational challenges of collecting and grading paper attendance quizzes typical of large classes, I decided to experiment with personal response systems, i.e., “clickers”. More than 80% of the students enrolled already had a clicker registered on their name. The rest could sign up for an online account and participate via smartphones, tablets, or laptops for a small fee.
Initially intended for tracking attendance, the clickers have gradually evolved into a mechanism for evaluating content retention and promoting student engagement. I was compelled to rethink my approach to class delivery and plan more carefully for student engagement. I include clicker questions throughout my class notes to engage students at several points during class. I sometimes include questions from homework assignments or from exams. I encourage students to work in groups to answer clicker questions and I may re-poll the students on a certain concept or technique that is particularly challenging. I give credit for incorrect answers and include questions that ask for students’ opinions.
While clickers have not resulted in higher class attendance (due to the small grade contribution), I feel that classes are now more fun and engaging. The questions have generated more animated discussions, student competition (I can track which major, or group has better attendance or scores; students often go “yeah!” when they answer correctly a difficult question), and a somewhat better exam performance for the more active students (but more data analysis is needed). Student feedback has been positive and I am thus encouraged to use clickers in the future, potentially increasing the contribution of clicker questions and quizzes to about 10% -15% of the final grade.
