The document discusses different perspectives on realism and its role in education. It covers classical realists like Aristotle and Thomas Aquinas, modern realists such as Francis Bacon and John Locke, and contemporary realists including Alfred Whitehead, Bertrand Russell, Hilary Putnam, and John Searle. Realism in education aims to help students understand the material world through inquiry, science, and essential knowledge. Teachers play an important role in presenting curricula in a systematic, organized way to help students acquire the knowledge needed to survive.