This paper discusses the use of social studies in developing critical and creative thought in preschool children. The social studies curriculum at any age level involves three principles: the development of an understanding of the social sciences, encouragement of acceptable socio-cultural behavior, and the development of critical and creative patterns of thought. This paper discusses ways in which the latter principle can be encompassed in the preschool curriculum. Creative thought is defined as thinking which leads to fresh inventions for the learner. Critical thought is described as differing from creative thought only in degree of concern for a particular solution. Problem solving is considered the best reflection of critical and creative thought. The paper describes ways in which problem solving skills are used or can be encouraged in the preschool child's everyday activities in the classroom. Also described are structured activities deliberately planned to encourage problem solving skills. A number of principles which should be considered in planning preschool learning experiences (particularly those designed to develop creative thought) are suggested. (BD)