The implementation varied from local authority to local authority, but it was very much driven by the school’s understanding of the individual learner needs.
Amrywiodd y ffordd yr aethpwyd ati i wneud hyn o awdurdod lleol i awdurdod lleol, ond roedd wedi'i ysgogi'n bennaf gan ddealltwriaeth yr ysgol o anghenion y dysgwr unigol.