Welcome to the website of the Education and School Improvement Service for Bridgend, Caerphilly, Merthyr Tydfil and Rhondda Cynon Taf County Council Croeso i wefan Gwasanaeth Addysg a Gwella Ysgolion Cynghorau Bwrdeistref Sirol Pen-y-bont ar Ogwr, Caerffili, Merthyr Tudful a Rhondda Cynon Taf