The Best Way to Test Students? Make Them Explain It On Video | WIRED - 0 views
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John Evans on 14 Sep 17"AS A PHYSICS professor, I have two jobs. The first, obviously, is to help students understand physics. That makes me something of a coach. But I want to talk about my second job: evaluating what students understand about physics. You might call this grading them. Evaluating a student's understanding of a topic is like taking a measurement. However, it requires measuring something that is difficult to see. It's not like I can stick a ruler into a student's brain to determine the size of their physics stuff. Now, most teachers use indirect means, usually a multiple-choice test or an exam in which students work through a problem. These are poor measures of student understanding. Someone could simply guess, or flub the answer through a silly mistake. So how can I accurately assess a student's understanding of physics? Until someone invents a way of reading a student's mind, I must do something else. I use a combination of written tests and video assessments."