3. 平台

1）“可汗和可汗学院的故事”——History of Khan Academy from Khan’s The One World Schoolhouse: Education Reimagined（New York: Twelve, 2012）, and from interview with Khan, “The Accidental Innovator,” HBS Alumni Bulletin, March 1, 2012, http://www.alumni.hbs.edu/stories/Pages/story-bulletin.aspx?num=834.

2）“有来自200多个国家的5000名学生使用该网站”——Metrics on Khan Academy from Khan Academy factsheet, December 2013, http://khanacademy.desk.com/customer/protal/articles/441307-press-room, and University of New Orleans, “Online Education Pioneer Salman Khan Wows Crowds at the University of New Orleans,” May 21, 2013, http://www.uno.edu/news/2013/OnlineEducationPioneerSalmanKhanWowsCrowdsattheUniversityofNewOrleans.aspx.

3）“一开始纯粹是为了方便”——Khan, The One World Schoolhouse, p. 135. Emphasis in original.

4）“这个非营利组织的50名员工中，有近10人专门从事数据分析”——Anya Kamenetz, “A Q&A with Salman Khan, Founder of Khan Academy,”Fast Company, November 21, 2013, http://live.fastcompany.com/Event/A_QA_With_Salman_Khan.

5）“每一次与我们系统发生的交互都被记录下来”——Quoted in “The Accidental Innovator.”

6）“可汗学院基于每个学生的答题准确率运行一个统计模型”——Jack Kohlmeier, “Khan Academy: Machine Learning——Measurable Learning,”Derandomized（blog）, May 10, 2013, http://derandomized.com/post/51729670543/khanacademy-machine-learning-measurable-learning.

7）“网站存储了超过10亿条已完成的习题的记录”——Talk by Jace Kohlmeier, Mixpanel Office Hours, San Francisco. Video uploaded March 25, 2013, http://www.youtube.com/watch?v=Nvoc6atMpAw#t=30.

8）“来自任何地区的任何学生都能够参与世界上最好的教师的课程”——Bill Gates, keynote speech, Association of Community College Trustees, 44th Annual Leadership Congress, October 2, 2013, http://www.gatesfoundation.org/Media-Center/Speeches/2013/10/Bill-Gates-Association-of-Community-College-Trustees.

9）“因此随时可能被创新者突破”——For more on disruptive innovation in education, see Clayton M. Chrisensen’s classic text The Innovator’s Dilemma: The Revolutionary Book That Will Change the Way You Do Business, repr.（New York: HarperBusiness Essentials, 2011）. Also Clayton M. Christenson, Michael B. Horn, and Curtis W. Johnson, Disrupting Class: How Disruptive Innovation Will Change the Way the World Learns（New York: McGraw-Hill, 2008）.

10）“麻省理工学院某特别工作组”——Institute-Wide Task Force on the Future of MIT Education: Preliminary Report, November 21, 2013, http://future.mit.edu/preliminary-report.

11）“这成为他的一个思维转折点”——Khan, The One World Schoolhouse.