The Question and Answer section for The Souls of Black Folk is a great resource to ask questions, find answers, and discuss the novel.
Your question is very broad and involved. I suggest you read through Gradesaver's short-summary of the novel in order to understand the main idea. You might also want to read through Gradesaver's detailed summaries and analysis for each chapter.
Can you outline the point for me?
Du Bois' first realization that his race was used as a "problem" was when he was in elementary school. Du Bois attended an integrated school in Massachusetts, and one year, a new student had enrolled. A class project had kids share cards with each...