LITERATURE REVIEW: The article in question is the work of Mark K. Smith. In this article "Curriculum Theory and Practice", explore the meaning of curriculum and four different approaches to curriculum in relation to informal education. It relates the curriculum to formal and informal education. Mark K. Smith is a London-based researcher and educator at Developing Learning. He was Rank Research Fellow and Tutor at YMCA George Williams College London (a college attached to Canterbury Christ Church University) and visiting professor in community education at the University of Strathclyde. He writes many books and also writes for infed. org and serves on the editorial board of Youth and Policy. In this article he explains what curriculum theory is and how it relates to informal education. First of all, it has provided the definition of curriculum from different authors and follows it with four approaches of curriculum.1) Curriculum as context 2) Curriculum as product 3) Curriculum as process 4) Curriculum as practice. He said curriculum is not a new term at that time because everyone hears curriculum but the meaning of is different from person to person. First of all he gave the definition of curriculum by different people: 1) John Kerr defines curriculum as “All learning planned and guided by the school, whether it is done in groups or individually, indoors or outdoors of the school” (quoted in Kelly 1983). 2) Grundy defines the curriculum as a program of activities (by teachers and pupils) designed so that pupils achieve, as far as possible, certain educational and scholastic goals or objectives. (Grundy1987,11).3) Core competency set, objectives, content, methodology and assessment...... half of the article ...... approaches to curriculum theory and practice are used in the North American curriculum for the realization of liberal educators, science curriculum creators, developmental mentalists, and social improvers. References: 1) Blenkin, GMet al (1992) Change and the Curriculu, London: Paul Chapman.2) Bobbitt, F. (1918) The Curriculum, Boston : Houghton Mifflin.3) Grundy, S.(1987) Curriculum: Product or practice? Lewes:Falmer Press4)Jeffs TJ and Smith .MK(1999) Informal Education.Conversation, Democracy and learning, Ticknall:education Now.5)Stenhouse, L. (1975).An Introduction to Curriculum Research and Development,London: Heineman. 6)Smith, MK(1996,2000).“Theory and practice of the curriculum” encyclopedia of informal education, www.infed.org/biblio/b-curri.htm.7) Tyler, RW(1949) Fundamental principles of the curriculum and Education, Chicago: University of Chicago