This study compared the performance of two audience response systems (ARSs) without students requiring smartphone technology or Internet access during problem-based learning (PBL) activities. Clicker handsets linked to a radio frequency (RF) receiver and paper voting cards, known as Plickers, which display a QR code (two-dimensional barcode) that…

During problem-based learning sessions, undergraduate students were tasked with answering chemistry-related questions using clicker-handset technology in which the last response made by each handset would override any previous vote. The benefits, if any, of showing cohort responses from clicker questions during versus after polling were explored.…

Different approaches to the use of "clickers" (also known as student response systems) were introduced to a cohort of 127 students over a two-year period with the aim of making students think more deeply in-class about their chemistry knowledge. Student performance was monitored, and individual, anonymous student feedback was frequently…