Most teachers do not have the knowledge to effectively teach pupils about the contribution of Black, Asian and Minority Ethnic individuals and communities to the history of Wales.
Nid oes gan y rhan fwyaf o athrawon yr wybodaeth i addysgu disgyblion yn effeithiol am gyfraniad unigolion a chymunedau Du, Asiaidd a Lleiafrifoedd Ethnig at hanes Cymru.