that answer a student's question instantly are now inside most homework applications.
The question is not whether the answer is correct but when it arrives.
Learning depends on a period of that an instant answer removes.
Studies of worked examples find that students who struggle first and then see a solution more than those shown the solution immediately.
A tool that is always available therefore changes the difficulty of every task it touches.
The response in several school systems has been to delay rather than to .
An assistant that refuses to answer for ninety seconds and asks what the student has tried performs very differently in trials.
Teachers report a second effect that is harder to measure.
A class that can ask a machine stops asking each other, and the quiet is mistaken for concentration.
is one of the most reliable interventions in education, and it is the first casualty.
has moved faster than teaching, as it usually does.
Written work at home is worth less as evidence, so more schools mark in class and in conversation.
That shift is expensive in teacher time and is the only version that survives the technology.
The strongest use of an assistant is currently not with students at all.
Teachers use it to produce three versions of an exercise for different levels in the time one used to take.