Constructivism comprises a series of interconnected conceptions:
Psychological Theory of Knowledge
Constructivism is a psychological theory of knowledge (epistemology)  which argues that humans generate knowledge and meaning from their experiences. Constructivism is not a specific pedagogy, although it is often confused with constructionism, an educational theory developed by Seymour Papert. Piaget's theory of constructivist learning has had wide ranging impact on learning theories and teaching methods in education and is an underlying theme of many education reform movements. Research support for constructivist teaching techniques has been mixed, with some research supporting these techniques and other research contradicting those results.
- Jean Piaget, 1967