involving stages kid’s experience on their way to mental maturity (Piaget, 1952). Piaget’s theory hypothesized that children experience four developmental stages and they are as follows:Sensorimotor (o to 2 years of age), (Broderick & Blewitt, 2015).Preoperational (2 to 6 years), (Broderick & Blewitt, 2015).Concrete Operational (6 to 12 years), (Broderick & Blewitt, 2015).Formal Operational (12 to adulthood), (Broderick & Blewitt, 2015).Piaget’s theory and work has helped serve as guidelines that professionals utilize to assess whether or not a child is developing at a normal pace. Furthermore, it is used to determine what developmental milestones have been reached and which milestones have not been reached by a developing child. By using many varying formal and informal techniques in order to assess a child’s developmental and cognitive progress (Cole & Cole, 2005).Broderick, P. C., & Blewitt, P. (2015). The Life Span: Human Development for Helping Professionals. Boston: Allyn & BaconCole, M., Cole, S. R., & Lightfoot, C. (2005). The development of children. Macmillan.Piaget, J. (1952). The origins of intelligence in children (Vol. 8, No. 5, pp. 18-1952). New York: International Universities Press.