The document discusses the process of curriculum development, which includes 5 phases: 1) needs assessment, 2) formulation of aims, goals and objectives, 3) selection of content, 4) selection of learning experiences, and 5) evaluation. It describes each phase in detail, explaining concepts like horizontal and vertical organization of content and learning experiences. The document also discusses principles of sequencing content, such as world-related, concept-related, inquiry-related, learning-related, and utilization-related sequences. Finally, it covers the relationship between objectives and evaluation in curriculum development.