vocabulary http://wrkf.org en Closing The 'Word Gap' Between Rich And Poor http://wrkf.org/post/closing-word-gap-between-rich-and-poor In the early 1990s, a team of researchers decided to follow about 40 volunteer families — some poor, some middle class, some rich — during the first three years of their new children's lives. Every month, the researchers recorded an hour of sound from the families' homes. Sun, 29 Dec 2013 10:09:00 +0000 editor 20626 at http://wrkf.org Closing The 'Word Gap' Between Rich And Poor