然后他们试着用一种特定的演讲风格教学生一些东西，比如使用视觉辅助，和做一个后续测试，看看他们学到了多少。

Then they try to teach the students something with a specific presentation style, like using visual AIDS, and do a follow up test to see how much they learned.

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你打算用什么样的视觉辅助设备？

Now, what kind of visuals will you use?

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用户也能关掉额外的视觉辅助，蓝色导航点，以及照片上的网格。

You can also choose to turn on or off additional visual aids, the blue navigation dots, or the grid.

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