Bydd Cymru yn ddigon dewr i gyflawni ei chenhadaeth genedlaethol i ddiwygio addysg meddai Kirsty Williams, Ysgrifennydd y Cabinet dros Addysg, heddiw wrth i ganlyniadau PISA gael eu cyhoeddi.
Wales will have the courage to deliver its national mission of education reform, Education Secretary Kirsty Williams vowed today as the latest PISA results were published (Tues 6th Dec).