As used by UNESCO, inclusion refers to far more than students with special educational needs. It is centered on the inclusion of marginalized groups, such as religious, racial, ethnic, and linguistic minorities, immigrants, girls, the poor, students with disabilities, HIV/AIDS patients, remote populations, and more. In some places, these people are not actively included in education and learning processes. In the U.S. this broader definition is also known as "culturally responsive" education, and is promoted among the ten equity assistance centers of the U.S. Department of Education, for example in Region IX (AZ, CA, NV), by the Equity Alliance at ASU. Gloria Ladson-Billings points out that teachers who are culturally responsive know how to base learning experiences on the cultural realities of the child (e.g. home life, community experiences, language background, belief systems). Proponents argue that culturally responsive pedagogy is good for all students because it builds a caring community where everyone's experiences and abilities are valued.
Proponents want to maximize the participation of all learners in the community schools of their choice and to rethink and restructure policies, curricula, cultures and practices in schools and learning environments so that diverse learning needs can be met, whatever the origin or nature of those needs. They say that all students can learn and benefit from education, and that schools should adapt to the physical, social, and cultural needs of students, rather than students adapting to the needs of the school. Proponents believe that individual differences between students are a source of richness and diversity, which should be supported through a wide and flexible range of responses. The challenge of rethinking and restructuring schools to become more culturally responsive calls for a complex systems view of the educational system (e.g.see Michael Patton), where one can extend the idea of strength through diversity to all participants in the educational system (e.g. parents, teachers, community members, staff).
Although inclusion is generally associated with elementary and secondary education, it is also applicable in postsecondary education. According to UNESCO, inclusion “is increasingly understood more broadly as a reform that supports and welcomes diversity amongst all learners.” Under this broader definition of inclusion, steps should also be taken to eliminate discrimination and provide accommodations for all students who are at a disadvantage because of some reason other than disability.