Oaktree School provides for pupils with complex needs, mainly those with severe or moderate learning difficulties. A number have speech, language and communication difficulties and a diagnosis of autism. All pupils have a statement of special educational needs. Boys outnumber girls and pupils often join the school at times other than at the start of the school year. Most of the pupils require organised transport to and from the school. The school is currently at full capacity and over half of the pupils are from a range of minority ethnic heritages, with a third of the pupils speaking English as an additional language. None is at the early stages of learning English. White British pupils form the largest group followed by pupils of Any Other White background and those with African heritages. Almost two thirds of the pupils are known to be eligible for the pupil premium, additional funding provided by the government in this school for those pupils in the care of the local authority or known to be eligible for free school meals. The school is not in receipt of the Year 7 catch-up funding nor of the primary school sports funding. Sixth-form students are integrated fully into the various groups within the school, depending on their main areas of need. They are not taught in separate groups other than in Years 13 and 14. At present there are 15 pupils in Years 3 to 6, 28 in Years 7 to 9 and 18 in Years 10 and 11. The school employs six therapists with specialisms in speech and language, occupational therapy, psychotherapy and physiotherapy. The school provides a breakfast club and an after-school club at which pupils also receive an evening meal.