The document discusses different views on curriculum from the early 20th century to the progressive era. It outlines perspectives from Robert Hutchins, Arthur Bestor, and Joseph Schwab during the traditional era, who emphasized subjects like grammar, reading, rhetoric, logic, and math. John Dewey represented the progressive view, believing reflective thinking unified curriculum elements. Other progressives like Caswell & Campbell, and Smith, Stanley & Shores defined curriculum as all the planned experiences and learning that occurs for children/youth, both in and out of the classroom. Marsh & Willis also characterized curriculum as all the planned and enacted classroom experiences learned by students.