Scientific Essay from the year 2009 in the subject Pedagogy - Miscellaneous Topics, University Kebangsaan Malaysia (Center of language learning), course: TESOL, language: English, abstract: Now days, there is no hesitant due to fact that the status of English language of becoming a forerunner in worldwide communication as it has become the language of choices in most countries of the world. Hence, English has play an important role in united the country in the world bringing them together. As a result, many people are being involved in the teaching sector of English to people of foreign origin. Despite that, the heightened interest in the English language, teachers frequently face various difficulties and challenges while teaching English as a foreign language meanwhile the students also facing the same predicament as the teachers. According to Chia-Ming (2008), majority students who major in English not only face the challenges in learning, acquiring and mastering English but also the type of knowledge to be equipped for future globalised markets and advanced skills.In Malaysian context, the most emphasizes issues in the education ministry sector is that the use of English language in teaching Science and Math in English, which replaced with Malay language. This change has to do with the new government policy in education. The implemented of this action in the education system have brought such a huge problem towards the teachers and students. The sudden change is hard to be accepted by as the teachers are used to teach in Malay language. Because of the lack of experienced teaching in English they tend to code switch terms to Malay Language from English. That makes the study becoming more complicated. Moreover not all the teachers can speak English fluently and this somehow does affect the quality of teaching the Math and Science using the English language. While for students, they also prefer to code switch to their mother tongue language as it makes them understand certain terms much clearly.