The Question and Answer section for Roll of Thunder, Hear My Cry is a great resource to ask questions, find answers, and discuss the novel.
Stacey tells Cassie to not blame Big Ma for making her apologize to Mr. Simms. He addas that there are some things that Cassie just doesn't understand.
Are you referring the school bus full of white kids splashing them? They dig a ditch full of water so the school bus gets stuck.
From the text:
Well, I certainly did ! Whipped both of them good with my hickory stick. Wouldn't you have!' When Mama did not reply, she added defensively, 'I had a perfect right to.'