SCHOOL USES MACHINE TO MARK ALL EXAMINATION PAPERS (Apr, 1933) SCHOOL USES MACHINE TO MARK ALL EXAMINATION PAPERSSchool children of Ironwood, Mich., now have their examination papers marked and graded by robot scorers. In a test, a student is handed a list of questions with a choice of several possible answers, together with a supplementary card bearing numbers corresponding to the answers. He uses a punch to mark upon the numbered card the answer that he believes is correct. When the test is completed, the perforated cards are fed into the robot machine. A light flashes opposite each question correctly answered, and a meter dial indicates the total grade credited to the student.