Well, let me tell you about it!
It all begins with the publication of the Students' Rights to their Own Language Resolution in the College Composition and Communication journal in 1974. The goal of this document was to reaffirm students' rights to use their own language or dialect in the class room.
Below is the resolution:
We affirm the students' right to their own patterns and varieties of language -- the dialects of their nurture or whatever dialects in which they find their own identity and style. Language scholars long ago denied that the myth of a standard American dialect has any validity. The claim that any one dialect is unacceptable amounts to an attempt of one social group to exert its dominance over another. Such a claim leads to false advice for speakers and writers, and immoral advice for humans. A nation proud of its diverse heritage and its cultural and racial variety will preserve its heritage of dialects. We affirm strongly that teachers must have the experiences and training that will enable them to respect diversity and uphold the right of student s to their own language.
This video outlines what cultural diversity is, how to teach it, and why it is important. The SRTOL focuses mostly on linguistic/communication styles, but it a branch of supporting our culturally diverse student population.