This document discusses the theory of constructivism and its key proponents. It explains that constructivism is based on the idea that learning is an active process where students construct new ideas based on their experiences and prior knowledge. Some of the main advocates discussed include Jerome Bruner, Lev Vygotsky, John Dewey, and Jean Piaget, who all believed that students learn best through hands-on experiences and social interaction rather than through direct instruction. The document also provides examples of how teachers can incorporate constructivist practices both with and without technology.