The use of instructor-narrated video slideshows has increased in response to both the growth of online instruction and increased use of flipped classroom teaching approaches. In this episode, Corinne Syrnyk and Alyson Kubat join us to discuss their study examining the impact on student learning of audio vs video narration and of the emotional tone conveyed by the instructor’s voice. A transcript of this episode and show notes may be found at http://teaforteaching.com.