What does Scout hear Miss Gates say on the courthouse steps?

At the beginning of chapter 6, Scout listens to her teacher, Miss Gates, comment that there is no such thing as prejudice in the United States during a class discussion. Miss Gates then proceeds to criticize Hitler's treatment of the Jews while ignoring her own racial prejudice. Scout immediately recognizes Miss Gates's hypocrisy and decides to ask her brother about it later that night. That evening, Scout elaborates on Miss Gates's comments regarding Hitler and tells Jem,

Well, coming out of the courthouse that night Miss Gates was—she was goin' down the steps in front of us, you musta not seen her—she was talking with Miss Stephanie Crawford. I heard her say it's time somebody taught 'em a lesson, they were gettin' way above themselves, an' the next thing they think they can do is marry us.

Miss Gates's comments as she exits the courthouse reveal her racial prejudice, which emphasizes her hypocritical statements during the class discussion. Scout then proceeds to ask Jem how a person can hate Hilter so much but turn around and "be ugly" toward black folks in her community. Unfortunately, Jem is still hurt by the outcome of the Tom Robinson trial and tells Scout never to bring it up again.

In chapter 26 of To Kill a Mockingbird, Scout's class is participating in a current events lesson. Cecil Jacobs brings a newspaper article on Adolf Hitler. While discussing Hitler with the students, Miss Gates seems appalled that the Jews are treated so badly. She says, "Over here we don’t believe in persecuting anybody." Scout notices that Miss Gates's comments regarding Hitler seem contradictory to statements she makes on the courthouse steps during the time of Tom Robinson's trial. Scout recalls a conversation Miss Gates has with Miss Stephanie Crawford in which Miss Gates says, "it’s time somebody taught ’em a lesson, they were gettin‘ way above themselves, an’ the next thing they think they can do is marry us." Scout knows that Miss Gates is referring to the black citizens. She questions how Miss Gates can speak so unfavorably of Hitler persecuting the Jews then "turn around and be ugly about folks right at home." Seeking clarification, Scout attempts to discuss the matter with Jem.