Wikipedia
Pengajaran dan Pembelajaran Sains dan Matematik Dalam Bahasa Inggeris (PPSMI) (the teaching and learning of science and mathematics in English) is a government policy aimed at improving the command of the English language among pupils at primary and secondary schools in Malaysia. In accordance to this policy, the Science and Mathematics subjects are taught in the English medium as opposed to the Malay medium used before. This policy was introduced in 2003 by the then- Prime Minister of Malaysia, Mahathir Mohamad. PPSMI has been the subject of debate among academics, politicians and the public alike, which culminated to the announcement of the policy's reversal in 2012 by the Deputy Prime Minister, Tan Sri Muhyiddin Yassin.