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在线教育、MOOC和联通主义 and Connectivism: A New Approach to Understanding and Promoting Dialogue-Rich Networked LearningAndrew Ravenscroft International Review of Research in Open and Distance Learning Vol. 12.3 March – 2011, Learning Technology Research Institute (LTRI), London Metropolitan University, UK Siemens, G. (2005). Connectivism: A learning theory for a digital age. International Journal of Instructional Technology and Distance Learning, 2(1), 3–10. http: