Qualifications Wales is working with schools, further and higher education and others to co-design the new GCSEs and, subsequently, other qualifications.
Mae Cymwysterau Cymru yn gweithio gydag ysgolion, addysg bellach ac addysg uwch ac eraill i gyd-ddylunio'r TGAU newydd a chymwysterau eraill yn dilyn hynny.