So Andrew and his students went in, looked at some of those assignments, understood the root cause of the misconception, and then they produced a targeted error message that would be provided to every student whose answer fell into that bucket, which means that students who made that same mistake would now get personalized feedback telling them how to fix their misconception much more effectively.
Así que Andrew e os seus estudantes analizaron algunhas desas tarefas, entenderon a raíz dos equívocos e crearon unha mensaxe de erro específica que lles aparecería aos estudantes cuxa resposta caera nese caixón. É dicir, os estudantes que cometían o mesmo erro agora terían unha retroalimentación personalizada que lles diría como solucionar  ese erro de xeito eficaz.