What is the subject, and what is one central theme in this story? How does the author introduce and develop this theme throughout the text?

One central theme in the story:

Strict teacher way in educating his student.

The story tells about a teacher that often use corporal punishment such as caning to teach discipline to his student.

One of the subject of the story is when a young boy is punished because rather than doing his homework himself, his father do it for him