The document describes several linear models of curriculum development, including Tyler's model and Taba's model. Tyler's model involves 4 steps: determining educational purposes, selecting educational experiences, organizing experiences, and evaluating purposes. Taba's model involves 5 steps: creating teaching units, testing units with students, adapting units, creating a framework, and implementing units. The document also briefly outlines Oliva's 17-step model involving specifying needs, writing goals and objectives, organizing, implementing, and evaluating the curriculum.