The document discusses key concepts related to the structure of society and social problems. It defines social problems as issues that societies view as undesirable. It notes that what constitutes a social problem can vary between groups and over time. As an example, some Americans view abortion as a social problem while others view restrictions on abortion as the problem. The document also outlines the main institutions that structure society, including family, religion, politics, economics, and education. It defines social groups, statuses, and roles, and how they relate to institutions. Finally, it introduces the concept of sociological imagination as the ability to see personal issues in a social context and understand how individual experiences relate to social forces.