The document discusses the conceptual framework for a curriculum development system. It defines key terms like curriculum, system, and conceptual framework. It explains that a curriculum development system is a customized, coherent program for continually updating and improving curriculum. The system has fundamental elements like purpose, means, and assessment outcomes. It involves stages like conceptualizing, contextualizing, operationalizing, and institutionalizing. The conceptual base for curriculum focuses on learning through big ideas that are timeless, transferable, and universal.