In Mexico they call it the “profesor barco” — the teacher who passes everyone, never grades, shows up late, lets the session drift and gives top marks to anyone who hands in something. Other countries have other names for it. The phenomenon is the same and so is the damage: a group that spent a term without learning what the syllabus says they learned.
What is interesting is not that it exists. What is interesting is why schools take years to detect it, when every student in the group knew by the second week.
The satisfaction survey is inverted
The standard instrument for evaluating teaching is the end-of-course survey. And there lies the problem: a teacher who demands nothing, fails nobody and hands out grades tends to score well. Not because students lie, but because the survey asks about the experience, and the experience of a course without demands is comfortable.
The result is an instrument that, in precisely the case that matters most to catch, points the wrong way. The school gets a green light exactly where the red one should be flashing.
If the only data about a class is what people thought of it afterwards, the school is not measuring the class. It is measuring the memory of the class.
Classroom observation does not scale
The classic alternative is observation: a coordinator sits in on the session with a rubric and evaluates. It works, and it beats the survey by a wide margin. But it has two limits that no large institution manages to dodge.
- It is a sample. With two hundred groups and three coordinators, only a handful of sessions get observed each term. A coasting teacher can go years without landing in the sample.
- It is reactive. The moment the coordinator walks in, the class being observed is not the usual class. Everyone knows someone is evaluating.
What changes when the class is already recorded
Online and hybrid teaching left behind a by-product almost nobody uses: the recording. It is sitting there in the videoconferencing platform, and at most institutions it serves only to let an absent student catch up.
That recording can be audited. Not a sample: all of them. And against the same rubric for all of them, which is the part human observation never fully achieves — two different coordinators evaluate differently, and the same coordinator evaluates differently on a Tuesday than at nine on a Friday night.
That is what Qualidot does: it takes the recorded session, evaluates it against the rubric the institution already has, and returns observations with the timestamp where each one occurred. Not a loose number: the exact minute that backs it.
This is not surveillance of the teacher
This is worth saying plainly, because it is the legitimate objection that always comes up and it deserves an answer. Auditing a class is not grading a person: it is describing a session. The practical difference lies in what is done with the result.
- The evidence goes to the person who taught the class, not only to whoever supervises them. A teacher who sees the specific minute can correct it; a teacher who receives an overall score can only argue with it.
- The rubric belongs to the institution and is visible before any auditing happens. Nobody is judged against criteria they had not seen.
- The recording already existed and already had an owner. Auditing adds no cameras: it reads what the platform was already storing.
A coasting teacher is not detected by asking. They are detected by looking at the class — and looking at all of them, against the same criteria, is how it stops being corridor gossip and becomes something the school can actually act on.


