Thomas Gainsborough School in Great Cornard has been told it requires improvement by Ofsted after its latest inspection.
The school was visited by four inspectors just before the summer holidays, with 37 lessons monitored.
It got a rating of three, meaning it requires improvement, for its overall effectiveness as well as for the quality of its teaching and the achievement of pupils.
However, the school was given a two – a ‘good’ rating, – for its leadership and management and the behaviour and safety of pupils.
The Head Lane school, which has changed its name, uniform and headteacher in the last 18 months, as well as taking on additional pupils as a result of closing middle schools, was last inspected by Ofsted in 2009 when it was Great Cornard Upper School and rated ‘good’.
Ofsted’s report said the school requires improvement because, since the last inspection, the quality of teaching has been too variable to promote consistently good progress. It added that the sixth form needs to improve because students’ achievement is no better than in the main school.
But it said the headteacher and governing body provided strong leadership and demonstrated a clear vision for the school that is supported by all the staff.
“The headteacher has made a notable impact on current standards and progress since his appointment in January 2012,” it said. The school will be inspected again within the next 24 months.