That's not so easy on a video classroom.

在视频教室里可没那么容易。

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For example,some schools use computers for activities like video conferencing, to bring the world into the classroom.

VOA: special.2009.12.17

At its most basic, lecture capture does exactly that: captures audio or video recordings of classroom lectures.

FORBES: Digital Teaching Promises to Improve Grades

All begin with classroom instruction and video demonstrations prior to on-track exercises.

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It includes one hour of classroom instruction, video demonstrations and chalk talk, a half-hour track and vehicle orientation, lunch, and four and a half hours of track exercises in front and all-wheel-drive vehicles.

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