You finish grading a stack of essays and write "nice work" at the bottom of each one. The student reads it, shrugs, and files the paper away.

Nothing changes on the next draft, and that shrug sums up the problem. Comments that name exactly what is happening in the work are the ones students can act on. Here is how to write them.

Vague praise fades fast

A comment like "good job" or "needs improvement" tells a student how you felt about the work, not what to do next. The word "good" carries no information about which sentence worked or which paragraph collapsed. So the student guesses, and usually guesses wrong.

Research on feedback, including the widely cited work of John Hattie, an education researcher at the University of Melbourne, keeps landing on the same point: feedback only moves learning when it closes a specific gap between where the student is and where they need to be. "Great effort" closes no gap.

Name the exact move

Compare two notes on the same paragraph. One says "your argument is weak." The other says "your claim in sentence one says schools should start later, but your evidence in sentence four is about homework load, so the two don't connect."

The second one points to a place on the page. The student can go there, see it, and fix it. That's the difference between a verdict and a repair manual.

Point at the sentence, not the kid

Education researcher Grant Wiggins, co-author of Understanding by Design, argued that feedback should describe what happened in the work, not label the person who made it. Take this note: "When you wrote that the character 'felt sad,' I can't picture it. What did her hands do? What did she say?"

That comment gives the student a move to try. "You're a weak writer" gives them a label to carry. The first one keeps the focus on a fixable piece of text. The second one makes it about identity, and identity is a lot harder to revise at a desk on a Tuesday night.

Make it small enough to act on

Three specific notes beat fifteen general ones. If you mark everything, the student takes in nothing. Pick the one or two patterns that matter most for this draft, name them clearly, and let the rest go.

A student who fixes one recurring problem, like run-on sentences or missing topic sentences, gets more out of that than out of a page covered in red ink.

Let them use it right away

Feedback that arrives after the unit ends comes too late to use. Dylan Wiliam, emeritus professor of educational assessment at UCL, stresses in his work on formative assessment, checking learning during teaching rather than at the end, that the comment has to land while the student can still do something with it.

Hand back the draft with time to revise. Ask students to rewrite one paragraph using your note. If they can't act on your feedback before the next assignment, they won't.

Ask them to respond

One more step costs you almost nothing: have students write a short reply under your comment, such as "I fixed the topic sentence in paragraph two. I still don't know how to end the essay." Now you're in a conversation, and you can see whether your note made sense. Often it didn't, and that's useful too.

Specific comments take longer to write, but they spare you from writing the same corrections on the next set of papers. Next time you sit down with a red pen, pick one line in each essay and say exactly what's happening in it. Your students will know what to do on the next draft.