Session S21b (Monday, 2pm, Thomas 118)

P248: Using clickers to scale up a classroom assessment technique to a large classroom

Daniel King (Drexel University, USA)

Clickers (or personal response devices) have been used to identify muddiest points in a large-enrollment general chemistry course.  Muddiest points are a classroom assessment technique where students write down concepts they do not understand at the end of a class.  Typical implementation involves students writing the muddiest point on a card.  Clickers provide a mechanism for scaling this technique up for use in large classes, where distribution, collection and analysis of large numbers of cards are difficult.  In this new implementation, students answer a clicker question consisting of an instructor-created list of topics covered that day.  Topics chosen as the muddiest point generally related to content included in a clicker question asked that day, and primarily from clicker questions that students answered incorrectly.  Student performance on exam questions related to muddiest point topics will be compared to performance on exam questions not identified as muddiest points.

 

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