A comprehensive theory of child language acquisition requires an evidential base that is representative of the typological diversity present in the world's 7000 or so languages. However, languages are dying at an alarming rate, and the next 50 years represents the last chance we have to document acquisition in many of them. Here, we take stock of…

Reviews American educational policy and indigenous language loss, the importance of language revitalization, and various models of language-immersion studies. A case study reports on Papahana Kaiapuni, the Hawaiian language immersion program established in 1987. This program is an example of a native community's efforts to revitalize its language.…

A discussion of language in preschool education reviews research findings on children's language acquisition and its relationship to their general development and examines issues to be considered in making decisions for each community and program. The first section summarizes basic knowledge about preschool language development, facilitating…