Answer:
Jem is a young boy who plays games with his sister Scout and Dill, a neighborhood friend. He is immature in the beginning, "allowing Scout to join in his games and even dignifying her with an occasional fistfight."
As the story progresses, Jem grows up. Jem begins to only want to spend time with Dill. Jem out grows the desire to allow Scout to play. Jem and Dill go swimming without Scout.
Also, as Jem matures, he becomes more concerned with the racism that his father is dealing with during the trial.
Explanation:
