This document provides an overview of Ralph Tyler's objective model of curriculum development. The model emphasizes consistency between objectives, learning experiences, and outcomes. It includes four main principles: 1) defining learning objectives based on studies of learners and society, 2) selecting learning experiences to meet objectives, 3) organizing experiences for maximum effect, and 4) evaluating and revising ineffective aspects. The model aims to provide a structured approach for examining curriculum elements and their relationships. It focuses on clearly specifying objectives and using evaluation to improve curriculum alignment. The document discusses key terms, strengths, and criticisms of Tyler's influential model.