Closing the loop at the cognition layer
Most educational technology closes the loop at the outcome layer: a score, a grade, a completion. That’s the easiest signal to capture and the least useful one to act on.
The harder, more valuable place to intervene is the cognition layer — the reasoning as it happens, before it collapses into a right-or-wrong answer.
Why the outcome layer disappoints
An outcome tells you that something went wrong, not where. Two students can miss the same question for entirely different reasons, and a score erases that difference.
What the cognition layer asks of us
It asks us to model the learner’s state — what they can do, what they’re reaching for, where the reasoning bends. That’s a much bigger commitment than a gradebook, and it’s the whole point.