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How & Why Do Explanation Videos Work? And Do They?

This article explores the effectiveness of explanation videos in education, including their use in MOOCs and the impact on student engagement. It also discusses the role of the instructor, the influence of video production, and ideas from sociology. Additionally, it addresses the concept of "desirable difficulties" and suggests potential improvements for future video design in education.

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How & Why Do Explanation Videos Work? And Do They?

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  1. How & Why Do Explanation Videos Work? And Do They? Jörn Loviscach

  2. Khan-style videos

  3. Udacity CS222 (2012)

  4. 1981Donald E. Knuth http://scpd.stanford.edu/knuth/index.jsp

  5. Khan-style videos Teaching done by the book! Mayer. Multimedia Learning. Cambridge, 2009. • Reduction in contentand presentation • Speech & drawing:two channels • Informal and “personal” http://youtu.be/AJ3wSf-ccXo

  6. Study on edX MOOCs • More intensive use if < 6 min • Show lecturer, from time to time • Audience appreciates informal style: Khan wins over PowerPoint • Don’t speak too slow Guo/Kim/Rubin. How video production affects student engagement:an empirical study of MOOC videos. Learning @ Scale 2014.

  7. Ideas from sociology • Joint attention • Parasocial relationships

  8. Illusions of learning • Star professor effectCarpenter et al. Appearances can be deceiving. Psych. B&R, 2013. • Dr Fox effectNatuflin et al. The Doctor Fox Lecture. J Med Education, 1973. • Hardened misunderstandingsMuller. Designing effective multimedia for physics education. PhD Th., 2008. • „Amount of Invested Mental Effort“Salomon. Television is “easy” and print is “tough”. J Ed Psychology, 1984. • „Desirable Difficulties“Bjork et al. Self-Regulated Learning. Annu Rev Psych, 2013.

  9. Forums?

  10. Interleaved quizzes?

  11. Integrated quizzes? www.capira.de

  12. Matthew effect For unto every one that hath shall be given. Who are the students … • to post on the forum? • to take non-compulsory quizzes? • to have the grit to solve more demanding quizzes/problems?

  13. Where to go from here • Blended approaches,e.g., flipped teaching • Longer, complex videos • Videos with mistakesand errors • Lecturer as model … but the Matthew effect remains.

  14. www.j3L7h.de

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