Heddiw mae'r Gweinidog Addysg, Jeremy Miles, wedi ysgrifennu at bob pennaeth yng Nghymru i roi mwy o eglurder am sut gall ysgolion a cholegau barhau i weithredu'n ddiogel pan fyddant yn dychwelyd ym mis Medi.
Education Minister Jeremy Miles has today written to all headteachers and principals in Wales to provide more clarity on how schools and colleges can continue to operate safely when they return in September.