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Code by Luca de Alfaro and Michael Shavlovsky at the University of California Santa Cruz - hosted on Google AppEngine for security, availability, and data backup - see article: L. de Alfaro, M. Shavlovsky. CrowdGrader: Crowdsourcing the Evaluation of Homework Assignments. Technical report UCSC-SOE-13-11, August 2013. http://arxiv.org/abs/1308.5273

Ashton Anderson and Jure Leskovec (Stanford) Daniel Huttenlocher and Jon Kleinberg (Cornell) re Coursera students' activities/user rates: "engagement taxonomy" 5 different categories based on student interactions with the platform (http://www.openeducationeuropa.eu/en/news/mooc-study-creates-new-taxonomy-engagement): Bystanders are registered for the course, but their total activity is below a very low threshold. Collectors primarily download lectures, but don't participate much. Viewers watch lectures, handing in few if any assignments Solvers hand in assignments for a grade, viewing few if any lectures All-Rounders balance the watching of lectures with the handing in of assignments QUESTION: what about the way-finders - those who help create signposts for others to follow as learners navigate the course? or the web-makers - assisters/facilitators who help craft communities among learners?

A 7th grade science student shows us her personal learning environment (PLN) created by Symbaloo tumblelog- including how she uses a variety of platforms in searching out experts and talking with them (e.g., Skype and Blogster) or practicing how to write a lab report (e.g., Google Docs).

TodaysMeet - a free online tool to allow for real time online conversations in a closed room with no ads - even good for primary grades. This review also shows examples with pix