Why is comparison between mechanical teacher and human teacher important to understand technology's impact in the story?

Because it shows the difference between machine speed and human interaction

The comparison is important because it presents both the strength and the limitation of educational technology. A mechanical teacher can deliver lessons quickly, follow a programmed schedule, adjust work to a learner’s level, and check answers efficiently. A human teacher, however, can communicate naturally, notice emotions, explain confusion in flexible ways, encourage a child, and build a social relationship. Therefore, option A is correct: the contrast reveals the difference between machine speed and human interaction. Option B is false because the two systems are not identical. Option C reverses the story, since the human teachers belong to the earlier school system rather than living on screens. Option D is contradicted by the machine’s regular lessons. Understanding this comparison prevents a one-sided view that treats technology as either wholly good or wholly bad.

This is a Class 9 English question. Chapter: The Fun They Had. Topic: impact of technology.