The development of the Simon-Binet test, constituted a revolutionary approach to the assessment of individual mental ability. Binet himself revolutionized the fields of education and psychology, especially in regard to intelligence testing. He was asked to find a way to identify children with learning problems who needed to be placed in special classes. To address these practical educational concerns, he constructed the first successful intelligence test. His findings were ahead of time and developed an understanding of individual differences of both typically and atypically developing children. The impact he had on the field of child development was by providing a framework for children with disabilities to get the knowledge that other children