用在线课程扩大教育规模

Scaling Education with Online Courses

吴恩达 Andrew Ng · OpenEd 主题演讲 · 2013-11-06 · 约 40 分钟 · 原视频 ↗

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本期速览 · Overview

一位斯坦福教授兼在线教育平台联合创始人分享他们如何将一门 400 人的课程扩展到 10 万在线学生，如今服务全球超过 500 万学生。

A Stanford professor and co-founder of an online education platform shares how they scaled from a 400-student class to 100,000 students online, and now serve over 5 million students worldwide.

要点 · TL;DR

• Coursera 旨在通过可扩展的在线课程，让教育成为一项基本人权。
  Coursera aims to make education a fundamental human right through scalable online courses.
• 自动评分和同伴互评在大规模上实现了掌握学习。
  Mastery learning is enabled by auto-grading and peer grading at scale.
• 翻转课堂模式利用在线内容增强校园互动。
  Flipped classroom model uses online content to enhance on-campus interaction.

核心观点 · Key points

• 教育应是一项基本人权，而不仅仅是特权阶层的权利。
  Education should be a fundamental human right, not just for the privileged.
• 带有自动评分和同伴评分的在线课程能够大规模实现掌握学习。
  Online courses with auto-grading and peer grading enable mastery learning at scale.
• 翻转课堂模式利用在线内容释放课堂时间，用于更深入的互动。
  Flipped classroom model uses online content to free up class time for deeper interaction.
• 来自数百万学生的数据可以通过统计调整提高评分准确性。
  Data from millions of students can improve grading accuracy through statistical adjustments.
• 结合打字生物特征和照片 ID 的验证证书提供了可信的凭证。
  Verified certificates with typing biometrics and photo ID provide credible credentials.

反共识 · Contrarian takes

• 大学的角色不仅仅是传播内容，而是促进互动。
  University's role is not just to broadcast content, but to foster interactions.
• 大规模同伴评分经过数学修正后可以与教师评分一样准确。
  Peer grading at scale can be as accurate as teacher grading with mathematical corrections.
• 免费在线课程也可以通过翻转课堂改善校园教育。
  Free online courses can also improve on-campus education via the flipped classroom.
• 大多数 Coursera 学生已经拥有学士学位，并非传统大学适龄人群。
  Most Coursera students already have a bachelor's degree, not traditional college-age.
• 内容许可费可能是维持大规模免费教育所必需的。
  Content licensing fees may be necessary to sustain free education at scale.

本期章节 · Chapters（共 11）

• 引言与技术难点 Introduction and technical difficulties
• Coursera 的使命与成长 Coursera's mission and growth
• 学生选课动机与体验 Why students take courses and student experience
• 多次尝试与掌握学习 Multiple attempts and mastery learning
• 自动评分与同伴评分的局限 Limitations of auto-grading and peer grading
• 学生体验：社区与辅导 Student Experience: Community and Tutoring
• 家族传统与 Coursera 诞生 Family tradition and the birth of Coursera
• 问答环节 Q&A session
• 关于 Coursera 限制性使用条款的问题 Question about Coursera's restrictive terms of use
• 关于同伴评分方法的问题 Question about peer grading methodology
• 结束语 Closing remarks

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