The teacher's decision
Which concept needs follow-up, and why?
This is the whole loop a teacher actually does: read the evidence behind one concept, decide what to do, and check later whether it stuck. Watch how Cognivia behaves when the evidence is strong, when it is mixed, and when it is too thin to say much. Every learner and every record here is synthetic.
A missing follow-up is shown as missing — not as mastery, failure, or proof the tool worked. A single answer is never turned into a stable label for a child. The same decision rules run here as in the product; only the data is synthetic.