I had to teach my NYU psych class to 360 students from a cell phone while trapped in an elevator with my kids. It went surprisingly well.

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www.businessinsider.nl/i-had-to-teach-my-nyu-psych-class-to-360-students-from-a-cell-phone-while-trapped-in-an-elevator-with-my-kids-it-went-surprisingly-well/