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        Education in a language which is not the first language of the learner is as old as education itself. As individuals from different language groups have lived together, some have been educated in an additional language. This is as true of Ancient Rome as it is of the increasingly multilingual societies being created through mobility and globalization in the 21th century.

        Two thousand years ago, provision of an educational curriculum in an additional language happened as the Roman Empire expanded and absorbed Greek territory, language and culture. Families in Rome educated their children in Greek to ensure that they would have access to not only the language, but also the social and professional opportunities it would provide for them in their future lives, including living in Greek-speaking educational communities. This historical experience has been replicated across the world through the centuries, and is now particularly true of the global uptake of English language learning.

        Researchers and educators have sought new practices in education that will suit the demands of the present day. Globalization and the forces of economic and social convergence have had a significant impact on who learns which language, at what stage in their development, and in which way. The driving forces for language learning differ according to country and region, but they share the objective of wanting to achieve the best possible results in the shortest time. This need has often dovetailed with the need to adapt content-teaching methodologies so as to raise overall levels of proficiency.

(COYLE, Do; HOOD, Philip; MARSH, David. 2010. Adaptado)