The document discusses constructivism, a learning theory based on the idea that students learn by actively constructing knowledge through experiences. It provides key points about constructivism, including that the instructor guides students to use prior knowledge to comprehend new information. The document also outlines important constructivists like Piaget, Bruner, Vygotsky, and Dewey and their theories about cognitive development stages, social interaction playing a role in learning, and the zone of proximal development. Finally, it discusses implications for teachers in developing hands-on, student-centered learning environments.