Class structure refers to the way society is organized into different groups based on factors like wealth, education, and occupation. These groups, often called social classes, can include the upper class, middle class, and lower class. Each class has its own characteristics, lifestyles, and opportunities, which can affect people's access to resources and social mobility. Understanding class structure helps us see how inequalities can arise in society. For example, individuals in the upper class may have better access to quality education and healthcare, while those in the lower class might face challenges in achieving the same level of success. This awareness can lead to discussions about fairness and the need for social change.