The document discusses different models for curriculum design, including subject-centered, learner-centered, and problem-centered designs. Subject-centered design focuses on specific academic subjects and follows textbook organization. Learner-centered design considers students' interests, experiences, and development. Problem-centered design organizes curriculum around problems for students to solve, making learning authentic. Both advantages and disadvantages are noted for learner-centered and problem-centered approaches. Examples of different designs within each model are also provided.