Spectacularly Normal » Heritage doll, biatch

The question is difficult to research so I thought that some people might be blogging on personal richness and school.  I went to Technorati and put in the search terms: richness, classroom and multicultural. That led me to this mother's blog. The mother and the commentors below show that cultural richness is not easily defined. Not easily isolated and classified.
I'm not sure how this sheds light on the question asked, but it does lead us into some interesting territory.