"Cecil Jacobs made me forget. He had announced in the schoolyard the day before that Scout Finch's daddy defended n******. I denied it, but told Jem. "

In this passage Cecil Jacobs, one of Scouts classmates, was terrorizing her because Atticus was defending Tom Robinson. At that time in wasn't common to see a white man to be defending a black man. Atticus is someone who took the challenge to defend Tom Robinson because he knows it's wrong how colored people were treated, but he got a lot of criticisms for it. Scout didn't fight him because she knew that she was too old to do childish things like that. Scout didn't really understand what he was saying so she went to Atticus. Atticus is a smart man and teaching his kids not to be like other kids.
Scout says " Do you defend n****** Atticus?"
He tells Scout he does , but also tells her no to say the n-word. She tells him that everyone else at school does and he responds with,
"From no on it'll be everybody less one"
I love the way that Atticus is a big influence on Scouts life and how he's teaching her to be a better person in a place where their is many racists views. I also think as a parent he explained the situation very well for someone as young as Scout. Even Atticus knows she wont understand and he still tells her so she wont be like other people with their views on colored people.