Creative Commons “Harvard Business School Baker Library” by Chensiyuan (CC BY-SA)
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An article in Inside Higher Ed highlights the following positive effects of Harvard Business School’s HBX CORe program which was designed to facilitate extensive collaborative learning:

• A course completion rate of over 85% (usually lower than 10% for MOOCs).
• High satisfaction rate with 80 to 90% of learners evaluating the teaching and program content as either four or five out of a five.
• Very high levels of engagement with peers and course materials through program analyses, reflections, and content discussions with peers (via required participation).

Read the article to learn the principles of collaborative learning that Harvard Business School used in their online course design.