As part of this, there were 8,696 responses to a bilingual online survey all of whom worked in the education sector in Wales.
Ategwyd hyn gan dystiolaeth saith grŵp ffocws a rhanddeiliaid oedd yn cynrychioli’r holl nodweddion gwarchodedig, ac arolwg ar-lein a dderbyniodd 167 ymateb o bob cwr o Gymru.