When teaching tools arrive in a classroom, repetitive work changes first. Marking, explaining individual concepts and generating practice can all be handed over to some degree.
That raises an immediate question: what should the time freed up be used for. If it simply absorbs more classes or more administration, the space the technology created fills up straight away, and teaching quality does not necessarily improve.
Diagnosis is scarcer than explanation
A system can identify which questions a student got wrong. It is far less able to tell whether the cause was a shaky concept, a misread question or insufficient practice. That kind of diagnosis draws on a teacher's knowledge of the student over time.







