The document discusses various concepts related to curriculum development. It defines curriculum as a plan for learners' education, a field of study, and a series of planned educational events. The origins and development of curriculum are traced from the 1890s with the Harvard report and Herbartian movement emphasizing subject selection and organization. Curriculum is described as a program of studies, content, planned experiences, and structured learning outcomes. Aspects include foundations, design, construction, development, implementation, engineering, and improvement. The document provides an overall picture of curriculum as well as terminology and processes related to curriculum concepts.