Because I am a Wikipedian, I don't rely on Wikipedia to tell me things that I know more thoroughly from better sources, including but not limited to personal experience. I speak Chinese (the four Sinitic languages Mandarin, Cantonese, Taiwanese, and Hakka), and I can understand the jokes that people of differing Chinese ethnicities tell about people of other Chinese ethnicities. All I can say is that if you think "Chinese" is one ethnic group practically or for purposes of educational policy, you should have another think coming. Even in China itself that is an issue. By official Chinese government survey,
http://news.xinhuanet.com/english/2007-03/07/content_5812838...
barely more than half of the population in China is even conversant in the national standard language.
So thank you for your suggestion. My suggestion is next time, please, do more than 10 seconds of research. You might learn something if you are open to more sources than just the University of Google.
This is all to say that it could be argued that Singapore is a Chinese-majority nation, but it doesn't take away from the fact that there are many Malays and Indians here, and many foreigners of all stripes (Indians, Europeans, Americans). Foreigners make up 2m of our 5.2m people (38%), which is pretty shocking really (500k of them have become permanent residents, though).
I'd say that in the context of primary schools here, diversity isn't at a true melting-pot level. Furthermore, education among Chinese families is pursued in the same aggressive way as in other East Asian nations - the majority of students have supplementary tutoring, sometimes from the early grades. The culture of academic emphasis among parents is in line with the government's pedadogical efforts, which results in high achievement levels.
This is not to take away from the success of the Singaporean mathematics curriculum, which is quite outstanding by most measures - probably because it was designed by mathematicians and teachers in tandem, drawing on the best practices in the world known at the time (the late 70s/early 80s). Though even that is changing with our new emphasis on knowledge by construction, collaboration and discovery.
#1 Language and ethnicity are not the same. #2 Singapore is 74 percent Chinese. Do a tiny, tiny, tiny bit of research before copy-pasting nonsense. Leterally, 10 seconds of research would be plenty.
http://en.wikipedia.org/wiki/Demographics_of_Singapore