Mae'r consortia wedi cydweithio i ddarparu canllawiau i ysgolion ynglŷn â hanfodion asesu gan athrawon, gan gynnwys y dystiolaeth sydd ei hangen i gefnogi penderfyniadau ffit orau. Maen nhw wedi darparu canllawiau manylach a mwy cyson ynghylch trefnu a chyflawni'r gwaith o gymedroli clystyrau'n effeithiol. Mae'r deunyddiau hyn wedi'u dosbarthu i ysgolion erbyn hyn a byddant yn cael eu defnyddio i ategu trefniadau rhanbarthol ledled Cymru.
The consortia have worked collaboratively to produce guidance for schools on the fundamentals of teacher assessment, including the evidence required to support best fit judgements. They have provided more detailed and consistent guidance on the organisation and delivery of effective cluster moderation. These materials have now been distributed to schools and will be used to strengthen regional arrangements across Wales.