The document discusses curriculum development and Ralph Tyler's model of curriculum planning. It provides background on Tyler, summarizes his four fundamental questions for curriculum planning, and outlines his model which begins with setting objectives based on studying learners, society, and subject matter. The model includes selecting learning experiences to meet objectives, organizing instruction, and evaluating effectiveness. Strengths are that it provides a clear starting point, while criticisms include that it can narrowly interpret objectives and be time-consuming. The document also contrasts Tyler's deductive approach with Taba's inductive model.