In Chapter 5 of the book "Almost American Girl" by Robin Ha, does Robin's 3rd grade teacher Mrs. Lee help or hurt Robin or both? (Why/how?) How does she change or influence Robin to act differently?

In Chapter Five, we learn that Mrs. Lee, Robin's third grade teacher, often singled her out from the other students, mistreated her, and punished her. As a result, Robin worked harder, but Mrs. Lee's cruelty affected her emotionally. Eventually, Robin opened up and told her mother what was happening.