The children in the story were taught by mechanical teachers.The mechanical teachers were actually computer systems which had large black screens on which all the lessons were shown and questions were asked. They had a slot in which students had to put their homework and test papers.
The students were taught to answer their questuions in a punch code and the mechanical teacher calculated the marks immediately. They had their personalized schools in their homes itself. They did not have any classmates. They learned geography, history and arithmetic. They had regular days and hours for school.