Anonymous wrote:Google Scholar and ERIC, the education research database are good sources.
http://www.sciencedirect.com/science/article/pii/0885200695900179
http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=1917412&fileId=S0305000907008604
http://lingref.com/isb/4/004ISB4.PDF
http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=8598396&fileId=S1366728911000356
Anonymous wrote:There are some good Mexican studies on this, but unfortunately they are only published in Spanish.

Anonymous wrote:There are only pros to sending a toddler to bilingual preschool, OP. Since the movement in preschool is all play-based now, playing in a new language is "mind-expanding" whether your child pursues the language or not.
Anonymous wrote:If you don't speak another language and are not going to send your child to a bilingual elementary school I wouldn't bother then.