Ricardo,
I've heard something about that in several places, I'd say that it's a mere reflection of what the world seems to be turning to today, that is a whole interconnection of concepts to be taught at their basics, rather than clustered disciplines which do not reflect links to any other than themselves (something that happened mostly to Psychology and Sociology, I think).
From my personal point of view, I do apply that to language learning through, i.e., Indo European roots for words, and I'd say it works, although some not-that-aware students find difficulty at first.
Best wishes, cordiales saludos,
Pablo