Question

what are the main feature of the mechanical teacher​

Answer 1

Margie and Tommy had mechanical teachers. These teachers were basically large black screens on which the lessons were shown and questions were asked. These teachers were adjusted according to the age and potential of the student concerned. They had a slot in which the students had to put their homework and test papers. The mechanical teacher immediately calculated the marks for the answers written in punch codes by the students. However, these teachers were prone to technical and mechanical failure and troubles.

hope this answer helpful

Answer 2

The mechanical teacher immediately calculated marks for the answer written in a punch codes by the students.