Note from the Editor Use of the audience response devices known as “clickers” is growing, particularly in large science courses at the university level, as evidence for the pedagogical value of this technology continues to accumulate, and competition between manufacturers drives technical improvements, increasing user-friendliness and decreasing prices. For those who have not yet tried teaching with clickers and may have heard unsettling stories about technical problems with earlier models, the decision to use them and the choice of an appropriate brand may be difficult. Moreover, like any classroom technology, clickers will not automatically improve teaching or enhance student learning. Clickers can be detrimental if poorly used, but highly beneficial if good practices are followed, as documented in a growing body of educational literature. In this Special Feature, we present two reviews that should assist instructors and teachers at all levels in taking the step toward clicker use and choosing an appropriate model. In the first, Barber and Njus compare the features, advantages, and disadvantages of the six leading brands of radio-frequency clicker systems. In the second, Caldwell reviews the pedagogical literature on clickers and summarizes some of the best practices for clicker use that have emerged from educational research. In a related article elsewhere in this issue, Prezsler et al. present the results of a study showing that clicker use can improve student learning and attitudes in both introductory and more advanced university biology courses.
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