What is the exposition for the skin im in?

"The Skin I'm In" is a novel by Sharon G. Flake that follows the story of a young African American girl, Maleeka Madison, who struggles with issues of self-esteem and bullying due to her dark skin and academic struggles. The exposition of the story introduces Maleeka's background, her insecurities, and her encounters with a new teacher, Miss Saunders, who helps her learn to embrace her identity and stand up for herself.