In this Youtube video, Dr. Yeap clearly explains Singapore’s approach to teaching mathematics. The “CPA Approach” which stands for Concrete to Pictorial to Abstract.
The relevant history to Singapore Mathematics begins in 1965. Prior to 1965 Singapore was a part of Malaysia and was a country stricken with poverty and an almost non-existent economy. On August 9th, 1965, Singapore was expelled from Malaysia by the Parliament of Malaysia to bring about peace to Malaysia and for reasons that would take me too long to write about.