Why Malaysian Government insists on using English for maths and science?

This is because the whole world uses the language as an information and/or technology language. How dangerous it will be if we try to use Bahasa, especially in school. See example below:-

Hardware = barangkeras
Software = baranglembut 
Joystick = batang gembira
Plug and Play = cucuk dan main
Port = lubang 
Server = pelayan
Client = pelanggan 

Try to translate this:

ENGLISH:
That server gives a plug and play service to the client using either hardware or software joystick. The joystick goes into the port of the client. 

BAHASA:
Pelayan itu memberi pelanggannya layanan cucuk dan main dengan menggunakan batang gembira jenis keras atau lembut. Batang gembira itu akan dimasukkan ke dalam lubang pelanggan. 

Now you know...WHY...

MALAYSIA (Tak) BOLEH