Character vs. society, the women is causing the problem by being so harsh to the little girl.
Because the co-workers Rita kept her eyes on her work and never said much. Laura concluded that Rita wasn't very smart. When a new procedure was introduced on their floor, Laura made several errors. Rita showed her a simple way to remember each step.
The plot is about how middle schoolers evolve. The setting of the school shows the everyday life of the main middle schooler going through the struggles of being a preteen and the preparation for high school. (If this doesn’t help google the plot of the story and think about the setting and the the relation.)