Teaching . 27 August 2026
The twelve words your class is losing
Completion tells you somebody clicked. This is the report that tells you what to teach on Monday, and how to read it without over-reacting.
6 minute read
Almost every classroom language platform reports the same thing: how far each student got. Lessons finished, percentage complete, minutes on task. It is easy to collect and it is nearly useless, because it measures attendance rather than knowledge.
A per-word mastery model can answer a different question. Not how far did they get, but which specific words is this class losing, ranked by how many of them are losing each one.
What the report is actually counting
For every word every student has met, the app holds when they last saw it, how stable that memory is, and whether the last few answers were right. A word appears near the top of the trouble list when a lot of students are answering it wrong, or when the interval keeps collapsing back to minutes.
That second signal is the interesting one. A word that is answered right but keeps needing to come back every two days is not learned; it is being rescued. It will disappear over a holiday.
How to read it without over-reacting
- Two or three students on a word is noise. They were away, or they are new, or they guessed. Leave it.
- A third of the class on one word is a hook problem. Not a class problem. Something about the picture is not landing, and the fix is one edit rather than a lesson.
- A whole cluster of related words is a teaching problem. If the top eight are all past tense forms, the trouble list has just told you what tomorrow is about.
- One student across many words is a person, not a data point. That is the case for a conversation rather than a worksheet.
The class hook
When a word is failing for a third of the room, you can write one hook and push it to everybody in the class at once. It takes about thirty seconds and it lands in the next review each of them does. Their own hooks, if they have written any, still win over yours, which is deliberate and is the right order.
What this does not tell you
It does not tell you whether they can speak. It measures recall of vocabulary, honestly and in detail, and vocabulary is necessary and not sufficient. A student who holds twelve hundred words and has never spoken a sentence is still a student who has never spoken a sentence.
More from the workshop
Why a picture beats a translation
The keyword method has been studied since the seventies, it works in every language pair anyone has tested, and almost no software builds it in properly.
Read itMethodHow the schedule decides when to ask
Every card carries two numbers. Between them they work out the day your memory of that word falls to ninety percent, and that is the day it comes back.
Read itPracticalWriting hooks that actually stick
A practical guide, with the five rules, the three traps, and worked examples in four languages.
Read itTry the thing this is about
Thirty days free, no card, and the hook library is open before you make an account at all.