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With apologies for the title -- some interesting graphs here that demonstrate the level of engagement at various video lengths. Makes the case for short videos. One thing that doesn't seem to be considered is how the video is integrated (or not) with learning activities.

This meta-analysis of the effects of video on learning found that adding video to existing teaching led to strong learning benefits. Videos may provide students with control over their level of cognitive load, they allow authentic demonstrations of skills, and they enable teaching staff to edit according to multimedia learning principles. Videos were more effective for teaching skills than transmitting knowledge.

Students viewed 3 different video formats: quiz questions embedded throughout, quiz questions only at the end, and no quiz questions. Students watching video with quiz questions throughout scored markedly higher on a subsequent assessment. Students in the study strongly support support in-video quizzing.

Excerpt: "In order for video to serve as a productive part of a learning experience . . . it is important for the instructor to consider three elements for video design and implementation: 1. cognitive load 2. non-cognitive elements that impact engagement 3. features that promote active learning."

Key finding: "Our data suggest that inserting short summaries into existing course videos is a simple and facile way to improve student recall of course contents." Thirty-second lecture summaries at the midpoint and end of lecture videos were correlated with significantly better learner performance on related quizzes. This was true if the lecture summary was delivered by the course instructor but not if it was delivered by a "guest." (Note: The average video length was approx. 10 minutes.)

Video content from a wide variety of experts, similar to Ted.com

"Results indicate students who enrolled in a redesigned online College Algebra course that strategically placed the instructor in the role of content provider performed significantly better. . . ."

A feature of OSU's Google Apps suite that might be handy for student clubs / student groups -- might be especially handy in engaging off-campus students into student activities? See the video for a quick overview.

"Based on their research, Velegol, Mahoney, and Zappe have the following suggestions for faculty interested in flipping: (1) Keep the video segments less than 10 minutes, (2) review the material in class for less than 20 minutes, (3) give students time in class to work on real-life and relevant problems or projects that are traditionally done at home, and (4) provide at least weekly assessments to keep the students on track."

Example of moving a Math course online and creating community by getting students to record themselves explaining solutions to problems

I just thought this cool. Not clear how valuable the game actually is (not a lot of deets). but I love the idea of re-purposing the classic game of Clue into scenarios based on real terrorist plots, with a goal of identifying and mitigating the cognitive and anchoring bias inherent in us all. ... I also love that they came up with MACBETH as an acronym. :)

good evidence showing ability of games to result in longer retention of information ---- "8 weeks later the effects of the game were still there -- not so for the video"