Sept 2010—Child Development journal article: “For 4-Year-Olds, Interactions With Teacher Key to Gains.”

Child Development journal article: Free play amid peer harms language development, but talking with the teacher helps. (Are parents talking to their own children helpful too?)

Sept 15, 2010. Society for Research in Child Development – press release (PDF): “or 4-Year-Olds, Interactions With Teacher Key to Gains”