I work in education and you're probably right that it's not THE thing, but it does enter the conversation. Teachers are supposed to provide what's called differential instruction but the quality and fidelity really depends on the teacher.
yeah, it's there, but I tend to think that "equity" is what people end up reaching for as a rationalization of the emotional need for uniformity / conformity / familiarity
It sort of "fits" but it just doesn't explain very much on its own
As an aside, I'm not really sure whether equity in the schools is simply being used as a buzzword folks think they need to include in their statements about various topics, or whether people really adhere to what it means and entails. Probably a little from column A and a little from column B.