Y pedwar diben fydd y man cychwyn a'r uchelgais ar gyfer cynlluniau pob ysgol o ran eu cwricwlwm. Mae'r rhain yn cynrychioli'r math o ddysgwyr y dylai ysgolion helpu i'w datblygu ac ethos y system addysg gyfan.
The four purposes will be the starting point and aspiration for every schools’ curriculum design. These represent the kind of learners that schools should help develop and the ethos of the entire education system.