The document discusses the constructivist approach to teaching and learning. It provides an overview of constructivism, including that children construct understandings of the world from their experiences and prior knowledge. It also discusses theorists like Piaget who studied cognitive development in stages. The document describes how constructivism applies in classrooms, with hands-on learning and student-centered lessons. It concludes with an example constructivist classroom that uses scaffolding, hands-on activities, group work, and discussions.