Bilingualism means that a person can master at least one language skills in both languages ​​, though at a minimum . Bilingual education is an education policy that is common for countries with a population of multi-racial or multi- ethnic society . Basic education is essential in the education system , particularly for countries which once occupied the invaders as experienced by the ASEAN countries such as Malaysia , Singapore , Indonesia , Philippines , Brunei , except Thailand . Malaysia , Singapore and Brunei , a former British colony , the Philippines was a former colony of Spain and then the United States . The diversity of nationalities and ethnic groups in these countries led to the use of different languages ​​among a people by another people .

When schools provide children quality education in their primary language, they give them two things: knowledge and literacy. The knowledge that children get through their first language helps make the English they hear and read more comprehensible. Literacy developed in the primary language transfers to the second language. The reason is simple: Because we learn to read by reading – that is, by making sense of what is on the page (Smith, 1994) – it is easier to learn to read in a language we understand. Once we can read in one language, we can read in general.

            The combination of first language subject matter teaching and literacy development that characterizes good bilingual programs indirectly but powerfully aids students as they strive for a third factor essential to their success: English proficiency. Of course, we also want to teach in English directly, via high quality English-as-a-Second Language (ESL) classes, and through sheltered subject matter teaching, where intermediate-level English language acquirers learn subject matter taught in English.

In addition, the use of foreign languages ​​among Malaysians . Expansion of the use of language requires the development of vocabulary / terminology in various fields of knowledge, especially for educational purposes , which is now used as the language of instruction in the field of national penididikan . The need for more urgent vocabulary when language became the official language of the country . Systems or affect the way language shapes berfikr to observe the world around us, the conversation a variety of languages ​​that can be said to have many ways to observe the world around her, conversations like this will have a system concept and the notion that the various language he likes.

        Use of terms and language patterns to meet different needs of society can not be approve by the government to use only the local language course in various areas of communication or other purposes. See diapakai use of words in the term computer / internet , originating from the Java language , use to replace the term using the official language of the State to replace words that do not apply and this in accordance with the norms of society in terms of language use.

     Legal regulations on the development of English is very important and the current progress of a clear rule also does not guarantee anything and continuous execution , it is because the development of the Malay language is used not only in language but also the language of conversation , therefore the use of unfamiliar vocabulary often used in the context of a lingua franca used in the State Malaysia mahupun said essentially , in an article law says that  imperfect learning something of the language in our society , among others caused because the imperfections of language learning in schools it's because our society is not adept at writing essays is not even good at writing in the official  letter This indicate where the importance of native language in educational institutions in relation to social relationships especially when dealing with scientific forums .