When zitkala-sa resists having her hair cut at her new school in "the school days of
an indian girl," the teachers react with brute force and violence. this episode illustrates?

Their failure to understand and respect Native American's beliefs, traditions, and cultures.

Explanation:

Her teachers in the school had bad reactions on her situation which is showing us that they are not understanding and respecting her culture and tradition.

Violence and brute force in Schools are against the law and they are punished.

This is also showing a sort of discrimination because they didn't even try to understand her situation and tradition so they are immediately shown disrespect of her culture.

he is suggesting that this widow is a strong woman, who is giving constructive criticism and she has enough to worry about, and she takes care of him, so he does not take it to heart.