Mae adroddiad Estyn hefyd yn nodi rhai tueddiadau sy’n achosi pryder, megis yr amrywiad mawr mewn cyfraddau presenoldeb mewn ysgolion unigol. Rydym eisoes yn ystyried, ynghyd â'r Tasglu Presenoldeb Cenedlaethol, pa waith dadansoddi data ychwanegol sydd ei angen i ddeall tueddiadau daearyddol, yn ogystal ag edrych ar ddatblygu clwstwr er mwyn cefnogi ysgolion i rannu arferion da a gwneud y mwyaf o’r gefnogaeth a'r gwasanaethau sydd ar gael mewn ardaloedd unigol.
Estyn’s report also sets out some concerning trends, such as the large variation in attendance rates in individual schools. We are already considering, along with the National Attendance Taskforce, what additional data analysis is required to understand geographical trends as well as exploring cluster development to support schools in sharing best practice and maximising the support and services available within individual areas.