EN
The article attempts to delineate the evolution of constructivist thought. The author presents the conceptual framework of the main representatives of this school. He begins with introducing the thought of Immanuel Kant, who was the first to have firmly claimed that the products of science represented the models of natural order. Thus, they are artificial constructs and, even though they may exist independently of particular individuals, they are not independent of human actions in general. What Kant proposed is a static constructivism. This static perspective has nowadays been replaced by the dynamic model, which demonstrates itself in a variety of forms. The author analyses these models, conceptualized by the conventionalists, by Ludwik Fleck and the representatives of sociology of scientifc knowledge. Concluding remarks clearly point out to the very concept of construtivism, which maintains the idea of ontological realism, while questioning the idea of epistemological one.