More than 510,000 students took part in this latest PISA survey, representing about 28 million 15-year-olds globally.
These PISA results reveal what is possible in education by showing what students in the highest-performing and most rapidly improving education systems can do.
Singapore is ranked 2, only one step behind Shanghai-China.
The nation’s educational standards has made this possible. To view what learning tool the country is using, click here.