Immersion, a relatively new approach to bilingual education, orginated in
Canada. It uses the target language as a medium of instruction in order to
achieve "additive bilingualism"-- a high level of second language
proficiency added to normal development in the L1. The wide range of
languages and purposes now served by immersion worldwide is illustrated by
case studies of thirteen programs presented and discussed in this book.
The introductory chapter defines immersion education theory and practice
and shows how this approach differs from other forms of bilingual education.