Just as students take in information differently as they learn differently, children also process feedback differently. Some may prefer — and absorb — helpful suggestions that come verbally, while others may prefer having that information come through written avenues. And there is some evidence that video feedback may help students better hear the suggestions made by their teachers without retreating from the criticism.
But peer-based criticism, where students critique each other, has also been shown to have value — for both the reviewer and the student being reviewed. Children learn critical thinking skills in having to assess others’ work.