For whom was the mechanical teacher adjusted?

Correct answer: For Margie

The County Inspector adjusted the mechanical teacher for Margie. He examined her performance and discovered that the geography sector had been set too fast for her level. He slowed it down and reset it so that the lessons would suit her ability. Therefore, option A is correct. The adjustment was not made for Tommy's mother, an old human teacher or a paper book. This event illustrates a feature of technological education: a machine can be calibrated to an individual learner's pace and level. At the same time, the episode also suggests that such personalisation does not automatically make study enjoyable, because Margie still dislikes the lonely and mechanical nature of her lessons.