The document discusses the evolution of management thought through different stages and theories over time. It covers the classical, neoclassical, and modern theories of management. The classical stage included Max Weber's bureaucratic model and Frederick Taylor's scientific management approach. Henry Fayol contributed the administrative management approach. The human relations movement emerged through the Hawthorne Studies of Elton Mayo. Modern theories include quantitative approaches using mathematics, systems approaches viewing organizations as systems, and contingency approaches tailoring management to situations.