Jean Piaget's work on children's cognitive development has acquired much attention within the field of education. One contribution of Piagetian theory concerns the developmental stages of children's cognition. His work has afforded mathematics educators with critical insights into how children learn mathematics concepts and ideas. In general, the knowledge of Piaget's stages aids teaches with understanding the cognitive development of the child as the teacher plans stag-appropriate activities to keep students active. Piaget believed that a child developed through a continuous transformation of thought processes. He believed that children develop steadily and gradually throughout varying and that the experiences in one stage form the foundation for the movement to the next (Berk, 1997 cited in Ojose, 2008).