Cognition is the process involved in thinking and mental activity, such as attention, memory and problem solving. In this essay on cognitive development I will compare and contrast the theories of Piaget. His theory of cognitive development help us understand the growth of capabilities like perception, attention, language, problem solving, reasoning, memory, and conceptual understanding. This theory is unique in its own right, addresses the issues of nature-nurture, continuity discontinuity, the role of children's activity, and how change occurs. Together, the theories in this chapter will provide you with a comprehensive understanding of ...