The document discusses Jerome Bruner's constructivist learning theory, which posits that learning is an active process where learners construct new ideas based upon their current and past knowledge. It emphasizes that learning should involve exploring large concepts, inquiry-based learning, and making connections between ideas. According to constructivism, knowledge is temporary, culturally mediated, and developed through language. The roles of the teacher involve posing problems, structuring learning around core concepts, seeking student perspectives, and adapting instruction based on student understanding.