
Lewin Kurt
Kurt Lewin was a German-American psychologist known for his contributions to social psychology and organizational theory. He introduced concepts like "group dynamics" and "field theory," emphasizing how group behavior influences individual actions. One of his key ideas is the "change model," which outlines three steps for effective change: unfreezing (preparing for change), changing (implementing new ways), and refreezing (solidifying those changes). Lewin's work laid the foundation for understanding how people operate within groups and how to facilitate change in organizations. His theories remain influential in psychology, business, and education today.