Pisa tests: UK lags behind in global school rankings

BBC News Education - The UK is still lagging behind leading countries at education and has made little progress in international rankings since results three years ago.

TES - Pisa: UK and England see performance drop in maths and reading, but climb rankings in science. OECD - PISA 2015 Results.

GOV.UK - PISA 2015: national report for England (updated 21 November 2017).