As we walked inside for a tour, there was an even bigger surprise.

当我们步入校园游览后，还有更多想不到的事。

The college has just 22 full-time faculty serving 60,000 students, with more than half of them attending their classes online. (The full-time faculty depend on 1,400 part-time teachers who manage individual class sections, review/grade assignments, and consult with students.) Students can start any of the school’s 1,000 courses almost any Monday of the year. Classes cost $84 per credit hour, far less than what other colleges charge.

学院只有22位全职教师，却有6万名学生就读，一半以上的人通过网上上课。（全职教师队伍由1400位兼职教师组成，他们管理各自的课程组成，自主打分评定作业，并指 导学生。）学生可以从学校开设的1000门课中选课，几乎全年中的任何一个周一都可以选。每学时只收取84美元，远比其他大学便宜。

I also visited the University of Phoenix, a for-profit institution with more than 300,000 students, where teachers and staff are working to make online learning even more flexible. One of the most popular innovations is a mobile app that gives students the freedom to study virtually anywhere. With the app they can keep track of their grades and assignments, participate in class discussions, and receive alerts from their teachers about their courses.

我也访问了菲尼克斯大学，这是一所拥有30多万学生的私立学校。这所大学的教职员工正努力使得在线学习更具弹性。其中一项最受欢迎的创新是一个基于移动端的app，这 个程序让学生真正获得了移动学习的自由。通过这个程序，学生们可以及时知晓他们的成绩和作业，参与课堂讨论，还可以收到老师的课程提醒。

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