Abstract
Massive online classes are global and diverse. How can we harness this diversity to improve engagement and learning? Currently, though enrollments are high, students’ interactions with each other are minimal: most are alone together. This isolation is particularly disappointing given that a global community is a major draw of online classes. This paper illustrates the potential of leveraging geographic diversity in massive online classes. We connect students from around the world through small-group video discussions. Our peer discussion system, Talkabout, has connected over 5000 students in 14 online classes. Three studies with 2670 students from two classes found that globally diverse discussions boost student performance and engagement: the more geographically diverse the discussion group, the better the students performed on later quizzes. Through this work, we challenge the view that online classes are useful only when in-person classes are unavailable. Instead, we demonstrate how diverse online classrooms can create benefits that are largely unavailable in a traditional classroom.
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While only marginally significant (p < 0.10), we include this result because it is suggests opportunities for future work.
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Acknowledgments
We are grateful to Dan Schwartz for thought-provoking discussions and feedback with early drafts; Coursera and the OpenEdX teams for platform integration and encouraging instructors to try Talkabout; instructors of the many MOOCs who use Talkabout in their classes, and the many students who connected with their peers and shared their stories with us. This research was funded in part through NSF grants #1351131 and #1444865, the Hasso Plattner Design Thinking Program, and the Siebel Scholars Program. This research was conducted under Stanford IRB protocol #30319.
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Kulkarni, C., Cambre, J., Kotturi, Y., Bernstein, M.S., Klemmer, S. (2016). Talkabout: Making Distance Matter with Small Groups in Massive Classes. In: Plattner, H., Meinel, C., Leifer, L. (eds) Design Thinking Research. Understanding Innovation. Springer, Cham. https://doi.org/10.1007/978-3-319-19641-1_6
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