in 1975, U.S. public schools educated only 1 out of 5 children with disabilities. Approximately 200,000 children with disabilities such as deafness or mental retardation lived in state institutions that provided limited or no educational or rehabilitation services, and more than a million children were excluded from school. Another 3.5 million children with disabilities attended school but did not receive the educational services they needed. Many of these children were segregated in special buildings or programs that neither allowed them to interact with non-disabled students nor provided them with even basic academic skills. The EHA, later renamed the Individuals with Disabilities Education Act (IDEA), required schools to provide specialized educational services to children with disabilities. The ultimate goal was to help these students live more independent lives in their communities, primarily by mandating access to the general education standards of the public school system. Initially, children with disabilities were often placed in heterogeneous "special education" classrooms, making it difficult for any of their difficulties to be addressed appropriately. In the 1980s, the mainstreaming model began to be used more often as a result of the requirement to place children in the least restrictive environment (Clearinghouse, E. 2003). Students with relatively minor disabilities were integrated into regular classrooms, while students with major disabilities remained in segregated special classrooms, with the opportunity to be among normal students for up to a few hours each day. Many parents and educators favored allowing students with disabilities to be in classrooms along with their nondisabled peers. In 1997, IDEA was modified to strengthen requirements for properly integrating students with disabilities. The IEPs must more clearly relate to the general-education curriculum, children with disabilities must be included in most state and local assessments, such as high school exit exams, and regular progress reports must be made to parents. All public schools in the U.S. are responsible for the costs of providing a Free Appropriate Public Education as required by federal law. Mainstreaming or inclusion in the regular education classrooms, with supplementary aids and services if needed, are now the preferred placement for all children. Children with disabilities may be placed in a more restricted environment only if the nature or severity of the disability makes it impossible to provide an appropriate education in the regular classroom. Mainstreaming Context in Other Countries Australian context It has been estimated that in the year of 2009 there has been