Sesiwn i Athrawon gyda Syr John Jones | A Session for Teachers with Sir John Jones

Fideo byr o'r Sesiwn i Athrawon gyda Syr John Jones a gynhaliwyd yn Venue Cymru, Llandudno ar yr 2 Chwefror 2016. | A short video of the Session for Teachers with Sir John Jones held at Venue Cymru, Llandudno on the 2 February 2016.