The OECD’s PISA 2012 tested more than 510,000 students in 65 countries and economies on maths, reading and science. The main focus was on maths. Math proficiency is a strong predictor of positive outcomes for young adults. It influences their ability to participate in post-secondary education and their expected future earnings. Shanghai-China, and Singapore were top in maths, with students in Shanghai scoring the equivalent of nearly three years of schooling above most OECD countries. Hong Kong-China, Chinese Taipei, Korea, Macao-China, Japan, Liechtenstein, Switzerland and the Netherlands were also in the group of top-performing countries.   Asian countries top OECD’s latest PISA survey on state of global education