To Kill a Mockingbird: How do Jem and Scout change during the course of the novel? How do they remain the same?

Both Scout and Jem lose a certain amount of innocence. Scout discovers that childhood ends, her brother grows up to discover people can let their hatred and ignorance prevail over common sense. Certainly Jem is learning what it takes to become a young man. Much of what both kids learn comes directly from Atticus. They learn not to judge others without walking a mile in their shoes and they experience this lesson first hand (Boo Radley, Mrs. Dubose). Both kids seem to mature in a fashion that reflects their father more and more. That is a good thing.

Are you human Rudy? Seriously. Are you? I don't know if you are . . . you're revolting and stupid . . . I hate it.

Arthur,

You're considering yourself as revolting and stupid. Do you mind?