DARTON Primary 'requires improvement' in a number of areas including the quality of teaching following an inspection by Ofsted.
At its last inspection three years ago, the Station Road-based school was found to be 'good' overall - but last month was told it needed to improve.
The report identified a number of areas that need attention such as the achievement of pupils, quality of teaching and leadership and management.
However, the behaviour and safety of pupils was rated as good.
The report said the reason the school was not rated as 'good' is because pupils' progress in writing requires improvement.
"This is because, since the previous inspection, it has been too slow and as a result, pupils' attainment in writing is below average," the report states.
Inspectors also said teaching requires improvement because the teaching of writing over time has not been good enough to prevent standards declining and progress slowing in the subject.