A small West Norfolk primary school has been ordered to improve following a visit by Ofsted inspectors.
The education watchdog has told Narborough Church of England School it must perform better after being marked down in several areas.
It said achievement of pupils, quality of teaching and leadership and management at the Denny’s Walk school all require improvement, although behaviour and safety of pupils was graded as good.
A report, published on Thursday, said pupil achievement was suffering, particularly in mathematics, as there was not enough good teaching.
It said: “Where teaching is not good it is usually because expectations of what pupils can achieve are too low and work is not accurately matched to pupils’ abilities.”
The report also said progress made by disabled pupils and those with special educational needs was too variable, with many making better than expected progress while others were too slow.
Ofsted said the school has many strengths, including successfully improving school attendance and also test results in Year Six.
Inspectors said pupils were “polite and courteous”, and said their achievement in reading was improving.
They also said there was a wide range of lunchtime and after-school clubs on offer.