HOW CAN SCHOOL CULTURE BE DEFINED? No single individual can make a school successful, however, a single individual, if he or she is the “leader,” can create stagnation and an unhealthy school climate. This is a phenomenon described more fully by the University of Texas education department on its website, www.uteach.utexas.edu. In their article, “Understanding School Culture,” the authors provide three examples of typical school cultures: the bureaucratic, the collegial, and the “toxic.”