The New York Times – Perri Klass, M.D.
“If a child grows up with caretakers who speak a foreign language — perhaps a Chinese au pair or a French nanny — the child may see some benefits down the road in studying that language. But if a child grows up speaking that second language — Korean, say — with cousins and grandparents, attending a “Saturday School” that emphasizes the language and the culture, listening to music and even reading books in that language, and visits Korea along the way, that child will end up with a much stronger sense of the language. It does take longer to acquire two languages than one, Dr. Hoff said, and that, again, comes back to the exposure.”(more)