The ten-day gap.
Everyone accepts that checking takes time. Far fewer people price what that time costs, because the cost does not show up as a bill — it shows up as teaching that did not work.
Two students, same paper
A student gets their paper back on Sunday evening, hours after writing it. They still remember what they were thinking on question 14. They see they used the wrong relation, and the memory of choosing it is right there to correct. That is learning.
The same student gets the same paper, with the same marks and the same red ink, ten days later. They no longer remember question 14. They look at the total, feel something about it, and put the paper in a bag. That is not a slower version of the first event. It is a different event, and a much weaker one.
The centre paid for the same teaching, the same paper, and the same marking in both cases.
What the delay actually does
- It separates the mistake from the reasoning that caused it. A student can correct a wrong answer from a marked paper. Correcting a wrong habit of thought requires remembering the thought, and that decays in days.
- It moves the class on. By the time the paper is back, the batch is two chapters ahead and revisiting the test feels like going backwards.
- It teaches students that tests are for grading, not learning. Which is the belief that makes them stop reading the feedback at all.
The second-order effect, which is worse
Centres respond to slow checking in a rational way: they set fewer tests. Not because they think testing is unhelpful, but because each test costs a week of faculty time, and there are only so many weeks.
So the real cost of slow marking is not the lost weekends. It is every test that was never set — and those are invisible, so nobody counts them.
A useful diagnostic. Ask your faculty how many tests they would set if checking were instant. If the answer is meaningfully more than what you run today, your test frequency is being decided by your marking capacity rather than by what your students need.
What actually shortens the gap
Not marking faster by being less careful — that trades one loss for another. What shortens it is removing the mechanical part of marking, so the teacher spends their time on the answers that genuinely need a decision.
That is what this product does: marks and per-question feedback come back the same day, with the uncertain answers flagged for the teacher and every mark quoting the words that earned it. The teacher still decides. They just do not have to decide two hundred times about answers that were obviously fine.
Try closing the gap on one test.
Send a paper you have already marked and see what same-day return looks like. The first one is free.