Constructivism proposes a vision of the person as an active creator of the world, not just its product. People live in “reality” mediated by mental picture of their experiencing, interpret the data provided by their senses and create model of outer world. When this model works successfully in explaining life phenomena, they experience it as outer reality. From the constructivist’s point of view, objective truth about how the world “really” is an unattainable illusion that escapes human epistemological efforts.