Computer Problem Solving Coaches for Introductory Physics: Design and Usability Studies.
Qing X. Ryan, Evan Frodermann, Kenneth Heller, Leonardo Hsu, and Andrew Mason School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA Department of Postsecondary Teaching and Learning, University of Minnesota, Minneapolis, Minnesota 55455, USA Department of Physics and Astronomy, University of Central Arkansas, Conway, Arkansas 72035, USA (Received 16 September 2015; published 16 February 2016)