What are some chapters in the novel To Kill a Mockingbird in which the theme "the effects of poverty and ignorance" are portrayed?

In Chapter 3, Lee portrays the association between poverty and ignorance in the character of Burris Ewell and his family. Burris comes from a poor family and displays his ignorance through his disrespectful comments directed at Miss Caroline. Burris' father does not value education and does not require his children to attend school. Later on in the chapter, Atticus explains to Scout how Bob Ewell spends most of his money on alcohol instead of feeding...

In Chapter 3, Lee portrays the association between poverty and ignorance in the character of Burris Ewell and his family. Burris comes from a poor family and displays his ignorance through his disrespectful comments directed at Miss Caroline. Burris' father does not value education and does not require his children to attend school. Later on in the chapter, Atticus explains to Scout how Bob Ewell spends most of his money on alcohol instead of feeding his children. The Ewells are a prime example of how Lee incorporates the theme of poverty and ignorance. The Ewell children suffer from their father's inability to maintain a steady job and their lack of moral education results in an ignorant attitude towards others.

In Chapter 15, the Old Sarum bunch attempt to lynch Tom Robinson before the trial. The Old Sarum bunch consists of poor, ignorant farmers. Their ignorance is displayed in their prejudiced views towards African Americans. Fortunately, Atticus and his children prevent them from harming Tom Robinson. The mob's ignorance would have been the catalyst for harming the Finch family in order to lynch Tom Robinson. The mob's socioeconomic status is what brings them together, and violence is perpetuated by their ignorance.