In To Kill a Mockingbird, Atticus proves he is a good father by helping his kids with their problems, educating them, and providing them with life lessons. Give three examples for Jem and Scout.
Problems. At the beginning of Part Two, Scout is upset with Jem, who seems to be distancing himself from his younger sister. Scout wonders if Jem has a tapeworm, but Atticus answer's her question simply and honestly.
Atticus said no, Jem was growing. I must be patient with him and disturb him as little as possible. (Chapter 12)
Scout decides to seek out more advice (and sympathy) from Calpurnia, but Atticus's advice proves accurate. Jem and Scout will never be as close as they once had been, but Jem never completely alienates his little sister.
Education. Atticus's best contribution to his children's schooling comes when he is able to "compromise" with Scout after her disastrous first day in the first grade. After Scout comes home and decides that she doesn't want to return to school--she prefers to be home-schooled as Atticus had been--Atticus convinces her to go back by a shrewd maneuver: He will go against Miss Caroline's orders that he stop teaching Scout if she will go back to school. They will continue to read together each night, but they won't tell Miss Caroline. Scout agrees to the bargain, and Atticus imparts some additional wisdom about how
"... You never really understand a person until you consider things from his point of view--until you climb into his skin and walk around in it." (Chapter 3)
Life's Lessons. When Atticus hears Scout using the "N" word, he forbids her from repeating it, since he believes only "common" people do so. Scout may not realize it at the time, but she has only been using the word because she's picked it up at school from some of her less enlightened friends. Atticus recognizes the degradation that is associated with the word, even if Scout is too young to understand it.