An entertaining example comes from a recent class exercise where a group modeled a commercial aircraft.

一个有趣的例子来自近期一组人员建模一个商业航行器。

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The exercise was beyond the abilities of most of the class.

这个练习超出了班上大多数学生的能力。

《牛津词典》

You can also join a livestream or on-demand exercise class.

你也可以参加直播或点播的运动课程。

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Okay. Those of you who have your clickers let's pull them out, what I'd like you to do, if anybody doesn't have your clicker yet, please bring it to class. Please get one and bring it to class and we're only going to do one these exercise with the clickers today just as a test, but in subsequent classes we'll be using them quite a lot.

好,带了表决器的人把它拿出来,如果有人还没有表决器,我希望,你能弄一个然后把它带到课上,我们今天只要用表决器做一个测试,但之后的课中我们将多次使用到它

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Partly because I think it's a good exercise, but also I don't want this class to be a class where you sit there, with your cup of Willoughby's coffee if needed to keep awake, and you watch me solve models because that's not how you learn.

一方面是由于我认为这是个好的锻炼机会,此外,我也不希望这个课程,变成你们坐在这,用威洛比咖啡来保持清醒,一边看我解决问题,因为你们不应那样学习

耶鲁公开课 - 博弈论课程节选

Children at the school do the exercise class at least once a day, some of them twice.

BBC: Obesity rates fall in Philadelphia

Some parents have refused to let overweight kids be taken out of class for more exercise, saying they should focus on studying.

BBC: Taiwan wages nationwide battle with the bulge

Led by a video projected on to a whiteboard nine children, a mix of Latinos and African-Americans, walk or jump on the spot, swing their arms, stretch and reach in an exercise class that lasts around 15 minutes.

BBC: Obesity rates fall in Philadelphia