What do miss caroline’s unconscious classroom mistakes reveal about maycomb’s children, specifically the finches, cunninghams, and ewells?

In the film Harper Lee's To Kill a Mockingbird, there are some mistakes made by Miss Caroline on the first day.As explained below.

Explanation:

First, he told Scout not to let his father teach him to read or write again, causing the child to feel embarrassed and disappointed.

In terms of knowing (or not knowing) her students, Miss Caroline made two big mistakes based on her ignorance of the economic situation in which her students lived.

First, he tried to force Walter Cunningham to take money for lunch when there was no way he could pay back the debt - Miss Caroline had no reference point about poverty where they lived. These are the children of southern farmers - who were devastated by the Depression - who could only pay in kind rather than cash, which could hardly be extorted.

Miss Caroline could not follow this line of thinking that made sense to Scout and the other children. With this in mind, he punished Scout by tapping his hand several times with a ruler and sending him to stand in a corner.