This document outlines three major sociological perspectives: symbolic interactionism, structural functionalism, and social conflict theory. It also discusses concepts such as social consensus, human functions, class conflict, cultural variation, social change, and political identities in the Philippines. Symbolic interactionism focuses on the meanings of everyday symbols and how people interact. Structural functionalism views society as a system whose parts contribute to stability. Social conflict theory sees society as groups struggling over resources. The document provides an overview of key concepts and theories in sociology.