Mae ein heriau mwyaf o ran recriwtio a chadw yn yr ysgol uwchradd, ac yna'n cael eu dwysáu mewn addysg gyfrwng Cymraeg, ac rwy'n bryderus iawn am hynny.
Our biggest challenges in recruitment and retention are in secondary school, and, actually, then compounded with Welsh medium, and I am really concerned about that.