A grade tells a student where they finished. Feedback tells them how to go further. Most lecturers give the first and skip the second and that is where learning stops.
Introduction
Here is a scene that plays out in lecture halls across Nigeria every semester. A lecturer marks a stack of scripts, writes a score at the top of each one, and returns them to students. The students look at the number, feel pleased or disappointed, and then file the paper away. Nothing changes. The next assignment produces the same mistakes.
This is not a failure of effort. It is a failure of feedback. When all a student receives is a number, they have no way of knowing what they did well, what went wrong, or most importantly, what they should do differently next time. Assessment without useful feedback is like a GPS that tells you that you are lost but does not show you the route.
The good news is that giving feedback students actually use does not require hours of extra work. It requires a shift in how you think about what feedback is for and a few practical techniques that make your comments more precise, more actionable, and far more likely to produce growth.
Feedback is not about the past. It is a tool for shaping what a student does next. – Adapted from Hattie and Timperley’s feedback research, 2007
| Effect of feedback on learning +29% average improvement when feedback is specific and timely | Students who read feedback ~40% when it consists only of a grade or score | Feedback timing 48 hrs the window in which feedback has the greatest impact |
What feedback looks like vs what it should look like
| Feedback that does not help | Feedback that drives improvement |
| “Poor argument structure.” | “Your introduction is strong, but paragraph 3 needs a topic sentence.” |
| “Not enough detail.” | “Add one specific example from the case study to support this claim.” |
| “Good job.” (with no explanation) | “Your data analysis is accurate — now explain what it means for the argument.” |
| “See me.” (no further guidance) | “Revise the conclusion using the criteria in the rubric provided.” |
| Only a grade — no written comment |
Five principles of feedback that works
1. Be specific: name the problem and the location
Vague feedback (“weak analysis”) leaves students guessing. Specific feedback tells them exactly where the problem sits and what it looks like. Instead of “your argument is unclear”, write “your argument in paragraph 2 makes a claim without evidence, you need at least one supporting source here.” The more precisely you locate the issue, the more efficiently a student can address it. Specificity is not cruelty, it is respect for the student’s ability to improve.
Try it: For your next batch of scripts, underline one specific sentence in each and explain only that.
2. Make it forward-facing: tell students what to do next
Most feedback describes what went wrong. The most useful feedback also tells the student what to do about it. “Your essay lacks a clear thesis” is backward-looking. “In your revision, write a one-sentence thesis at the end of your introduction that states your main argument and three supporting points” is forward-looking. The second version gives a student a concrete task. They do not need to interpret your comment, they can act on it immediately. Aim for at least one forward-looking statement per assignment returned.
Try it: End every written comment with “In your next draft / next submission, try…”
3. Return it quickly: timing matters more than detail
Feedback returned three weeks after an assignment is submitted has almost no impact on learning. The student has already moved on mentally. The closer to the event, the more the brain can use the feedback to consolidate understanding. In a busy university schedule, this may mean returning light feedback within 48 hours and more detailed feedback within one week. Even a brief verbal comment immediately after a class presentation, before the student leaves the room, is more valuable than a detailed written report three weeks later.
Try it: Use a simple 1–2 sentence comment per student for quick in-class tasks, returned same day
4. Use rubrics: make expectations visible before the task
A rubric is a simple grid that shows students before they submit, exactly what criteria they will be assessed on and what each level of performance looks like. When students know in advance that “argument quality” accounts for 40% of the grade, they write with that in mind. When they receive feedback against a rubric, they can see clearly which criteria they met and which they missed. Rubrics also make your marking faster and more consistent, especially across large cohorts. Even a basic four-criterion rubric shared one week before submission changes how students approach their work.
Try it: Design a one-page rubric for your next assignment and share it the week before the deadline.
5. Close the loop: ask students to act on your feedback
Feedback that is received but never acted on changes nothing. The most powerful feedback systems require students to do something with the comments they receive. This could be a short resubmission, a written response explaining what they would change and why, or a brief one-on-one conversation during office hours. Even asking students to write three things they will do differently before the next assignment creates a moment of intentional reflection. When students know they will be asked to respond to feedback, they read it far more carefully.
Try it: Ask students to reply to your feedback with one sentence: “In my next assignment, I will…”
Transforming weak feedback into strong feedback
| Before | After |
| “Not clear.” | “Paragraph 1 is hard to follow. Start with your main point, then explain it.” |
| “Good work.” | “Your use of the case study evidence is strong. Apply this same approach to section 3.” |
| “Needs more depth.” | “In section 2, explain why the data supports your claim, not just what the data shows.” |
| “Wrong approach.” | “You used a descriptive approach here, the question asks for critical analysis. See the rubric, criterion 3.” |
Sample rubric: academic essay (extract)
| Criterion | Fail | Pass | Credit | Distinction |
| Argument clarity | No clear thesis | Thesis present but vague | Clear thesis, mostly supported | Precise thesis, fully developed |
| Use of evidence | No sources cited | Some sources, weak links | Relevant sources, good links | Strong sources, critical links |
| Structure and flow | No clear structure | Basic structure present | Clear, logical flow | Seamless, coherent flow |
| Critical thinking | Descriptive only | Some analysis attempted | Analysis clear and relevant | Insightful, evaluative depth |
From a lecture hall in Ibadan
A lecturer in the Faculty of Social Sciences at a Nigerian university was returning assignments to a class of 95 students. She had always written a score and a one-line comment. After attending a teaching development session, she introduced three changes: a rubric shared one week before submission, two specific written sentences per script (one on what worked, one on what to improve), and a requirement that every student write one sentence in response to her feedback before the next class.
Within one semester, the average score on the next assignment rose by eight percentage points. More significantly, the number of students who repeated the same errors from one assignment to the next dropped by more than half. The feedback had not become longer. It had become clearer and it had been used.
Your action step this week
Pick your next set of assignments to mark and try just one change: replace every vague comment with a specific, forward-looking sentence. You do not need to write more, you need to write differently. One precise comment that names the problem and points toward the solution will do more for a student’s growth than a full paragraph of general praise or criticism. Assessment is not the end of learning. Done well, it is where the best learning begins.
