Answer:
institutionalized discrimination
Explanation:
Institutionalized discrimination is a concept that refers to the unjust and discriminatory mistreatment of an individual or group of individuals by society and its institutions as a whole.
This kind of discrimination refers to the negative treatment of a minority group in society's institutions, it often exists within governments, though it can also occur in education, religion, organizations, etc.
In this example, critics claim that special education classes have amounted to racial segregation in many school districts instead of actually providing extra opportunities for children.
Thus, this is a type of institutionalized discrimination since it happens inside an institution (education) and it refers to a different unjust treatment of a particular group of individuals, in this case, children with disabilities.