The document introduces structural-functionalism in social sciences, covering its key concepts, historical background, and prominent theorists such as Levi-Strauss and Radcliffe-Brown. It highlights the interrelationships between societal institutions and their functions, emphasizing manifest and latent functions as defined by sociologist Robert K. Merton. The document also discusses the evolution of functionalist perspectives and how they analyze the contributions of different social institutions to societal stability.