Dwi wedi gwrando ar y feirniadaeth ac wedi astudio’r dystiolaeth ryngwladol: mae’n bosibl bod diffyg eglurder ar hyn o bryd ynglŷn â gwerthuso a gwella ar lefelau gwahanol ein system.
I have listened to the criticism and studied the international evidence: perhaps there is insufficient clarity at different levels of our system regarding evaluation and improvement.