This document discusses various models and approaches to curriculum design. It describes subject-centered, discipline-centered, broad fields, correlation, process-centered, learner-centered, problem-centered, and reconstructionist designs. For each design, it outlines the key characteristics and strengths/weaknesses. It also discusses important dimensions to consider in curriculum design like scope, sequence, continuity, integration, and articulation. Overall, the document provides an overview of the philosophical foundations and various types of curriculum design.