Blog · Method
A mistake is a map, not a score
Eleven out of twenty is not information. It is the absence of information with a number written on it.
A score compresses twenty separate events into one figure, and the thing it throws away is the only part that was useful. Two learners both get eleven. One missed nine articles. The other missed three articles, three prepositions and three tenses. Those two people need completely different lessons, and the score says they are identical.
Errors come in kinds, and the kinds repeat
Watch a learner across a few weeks and the same handful of mistakes keep returning in new clothes. A Polish speaker drops articles. A Russian speaker drops the auxiliary in questions. Someone who learned English from films writes could of. These are not twenty accidents; they are three habits producing twenty symptoms.
Once you record the kind, the picture changes shape. Instead of a list of wrong answers you get a short list of named gaps, each with a count behind it. That list is actionable in a way a percentage never is: it tells you what to teach on Tuesday.
Why "do more practice" fails
The standard remedy for a low score is more of the same exercises. If the gaps are not named, more practice means more practice of everything — including the eleven things the learner had already mastered. Most of that time buys nothing, and the nine that actually mattered get a ninth of the attention they needed.
Worse, undiagnosed practice lets a wrong habit get rehearsed. A learner who does not know that their problem is the third-person -s will produce it wrong another forty times before anyone says so, and each repetition makes it harder to shift.
What we do about it
Every task a student answers carries a concept and a skill tag, so a wrong answer records what kind of thing went wrong, not just that something did. Those records accumulate into a profile of recurring gaps, and the practice a learner is offered afterwards is built from their own profile rather than from the next page of the book.
For subject lessons the same machinery records misconceptions — a recurring wrong idea, like treating a fraction's denominator as a quantity to add. A misconception is exactly the same shape of problem as a grammar habit: it repeats, it has a cause, and it does not go away by being marked wrong more often.
And progress is reported against the exam's own criteria — grammatical range, lexical resource, coherence — rather than a streak. A streak measures attendance. The criteria measure the thing you are actually going to be assessed on.
The practical version
Next time you mark your own work, do not write the score. Write, beside each mistake, three or four words naming what kind it was. By the fourth exercise you will have a list, and the list will be shorter than you expected. That list is your syllabus.
This is how we build the courses on our platform. Questions, or want to study with us? Write to us