How do you give feedback that actually improves student writing?

The research on feedback is unforgiving on one point: process feedback beats person feedback. Praise directed at the student ("you're such a good writer") or generic correction produces minimal learning. Feedback that names what the student did and what to do differently changes revision behavior.

1. Name the specific behavior and the fix. Not "good use of evidence" but "your evidence in paragraph 2 comes from a Wikipedia summary — find a primary source or academic article instead." Point to the exact move, describe what to change, and why. Specific, actionable feedback is what a student can actually revise toward.
2. Focus on the process, not the person. Avoid trait language ("you're a natural writer," "this needs work"). Name the observable skill: "You restated the prompt but didn't answer the question yet — your third sentence should directly address your claim." A second reader should be able to see the same gap.
3. Make each comment require a revision. Feedback without a next action is just a grade in sentence form. The strongest writing feedback directs the student to do something: clarify, add evidence, reorder, explain the connection. Passive feedback (told you're wrong) without productive action is weak.

Generating specific, process-focused, prioritized feedback for a stack of essays is what eats teacher time. A feedback tool can draft strong first-round comments per student — anchored to real text — so you spend your effort deciding what matters, not typing the same guidance 30 times.