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Some teachers are trading red grading pens like this one for video feedback. There’s evidence that video grading does more to motivate students than written edits — and it can also save teachers time. Credit: MEHDI FEDOUACH/AFP/Getty Images

A decade ago, English teacher David Narter had a revelation. One of his students had asked for extra guidance on her writing. She and Narter, a teacher at the Leyden High Schools, outside Chicago, sat down to review an essay of hers that he’d marked up. Narter started by simply reading his comments aloud. To his surprise, that process made a big difference.

In an article for the English Journal, Narter recounts how the student found his feedback more encouraging when he expressed it orally. As his student explained to him, “When I see the writing all over the paper, it just sounds like you’re saying, ‘You’re a bad writer.’ But now I feel like I can actually write this.”

Feedback is a funny beast. We all need pointers on our performance, but giving and receiving feedback can be fraught with misunderstanding. Take red pens. Social psychologists and sociologists have found that, as opposed to blue ink, grading in crimson can lead to more aggressive critique. The recipients of these mark-ups, meanwhile, may see their teacher as less approachable.

Fortunately, some simple, creative changes can help. Although Narter could not provide one-on-one counseling to every student, he has found a way to simulate such tête-à-têtes to reach a larger audience: by replacing written comments with personalized, five-minute video reviews of each assignment. The videos, he has found, allow him to provide useful, big-picture commentary. They also keep students feeling motivated rather than deflated — and the task takes Narter less time than writing out his notes.

The implication, then, is that the more we know about a speaker or writer, the better we’ll interpret his or her meaning. Riordan has studied text messages and email where, broadly, we struggle to communicate fully. In 2016, she found, for instance, that we tend to overestimate how well we share our feelings via email — even among friends. Happily, the study also hinted that this confidence was slightly more warranted when people have known each other longer. (It also found that people were more likely to accurately interpret negative emotions than positive ones.)

If a student doesn’t know his teacher well, Riordan points out, it may be easier for him to misinterpret her feedback. What’s more, without cues like tone of voice or facial expression, a reader’s mood can easily color his interpretations. If a student is feeling anxious and distressed, it’s probable he’ll take corrections critically. (Thus, it’s easy to imagine why Narter’s student was so reassured by his spoken commentary.)

Of course, we receive even more cues when we communicate in-person. Mahdi Roghanizad, an assistant professor of management and organizational studies at Canada’s Western University, has demonstrated that we’re more persuasive when we make requests face-to-face than via email. He has also found that people are better at gauging a stranger’s potential generosity when chatting in person, rather than in a video-to-video format (a la Skype). This in-person advantage disappears, however, when people wear mirrored sunglasses, obstructing eye contact.

Evolutionary psychology, he says, offers a possible explanation: “Our brain has evolved to communicate face-to-face, the more we go away from that specific channel, the less efficient we are.”

That logic might also explain why online-only courses, including much-vaunted MOOCs, struggle to retain students. But could video technology enhance these courses by adding more human elements?

Another Chatham professor, Meigan Robb of the nursing department, is trying to find out. Robb teaches an online course to experienced, degree-holding nursing professionals. Yet, just like Narter, she’s found that many pupils take away far more from a brief video than a densely edited manuscript. “I was pouring my heart and soul into [written feedback],” she recalls. But the students, she says, “didn’t do anything I asked them to do.”

To remedy that, she now combines written edits, audio files and narrated presentations to comment on her students’ work, both at the level of individual assignments and their overall progress in the course. Although it’s time-consuming, Robb believes the approach makes the class more engaging.

Back at Monash, Phillips reports that students in classes with video feedback seem to take greater responsibility for their work. “It’s the only time ever that I’ve had a student apologize for failing,” he says of a recent class in which he used video. He suspects the rich, individualized feedback helped the student form a more personal connection to the course. That may be a small fail for the student but a big win for video.

This story about video grading was produced by The Hechinger Report, a nonprofit, independent news organization focused on inequality and innovation in education. Sign up here for our newsletter.

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Daisy Yuhas is a science journalist and editor based in Austin, Texas, whose curiosity has driven her to cover the Higgs boson particle, birds brought back from the brink of extinction and the myriad quirks...

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