City’s students drop out of global top 10 in Pisa’s science section – the first time since Hong Kong joined international assessment.

The results show almost a quarter of students are “low performers” in mathematics while that figure rises to 29 per cent in reading.

More than half of 15-year-olds did not achieve the national proficiency standard in maths, according to new PISA results, which show China and Singapore in the lead.

Japan, South Korea and Hong Kong slip as regional rivals dominate OECD assessment