The document discusses the various functions that schools serve from different perspectives at the individual, societal, and group levels. At the societal level, schools socialize youth, select students for roles, transmit culture, provide credentials, promote political integration, conduct research, and serve custodial functions. Theoretical views like interactionist, functionalist, conflict, and critical perspectives are described for each societal function. Schools also have manifest functions like instruction and latent functions like developing youth culture.