Constructivism, radical constructivism, social constructionism: The world as interpretation

The paper is a review of theories, names and approaches within the constructivist paradigm, describing its history, characterizing its key notions: the idea of cognition as construction, the idea of plurality of the truth, and the idea of applicability as a criterion of "good" knowledge. The article also contains a comparative analysis of approaches: constructivism (in the narrow sense), radical constructivism, social constructionism, with a special emphasis on their links to national psychology and ideas developed by Buddhist psychology and cognitive theory.