Felicity Evans and James Williams are joined by BBC Wales education correspondent Bethan Lewis and Institute of Fiscal Studies research fellow Luke Sibieta to assess the performance of Welsh pupils in the most recent set of Pisa tests - the international maths, reading and science assessments carried out every three years. The latest results from the OECD's Programme for International Student Assessment - and the first since Covid - saw Wales' performance fall to its lowest level ever in all three disciplines, with Wales also scoring the lowest of all the UK nations.