strengthen the existing system of cluster group moderation by introducing a statutory requirement for all schools at Key Stages 2 and 3 to participate
atgyfnerthu’r system bresennol o gymedroli gan y grwpiau clwstwr drwy ei gwneud hi’n ofyniad statudol i bob ysgol yng Nghyfnodau Allweddol 2 a 3 gymryd rhan