In the United Kingdom it is compulsory to attend school between the ages of five and sixteen, which means that pupils have to go to primary school and then secondary school. Primary education is divided into infant school (age 5–7) and junior school (7–11). At secondary level (11–16 or 18), more than 90% of pupils attend comprehensive schools, which are nonselective and provide education for all children in a particular area. There are still about 150 grammar schools in England: to attend these, children have to pass an entrance exam called the 11-plus. About 6% of children are privately educated, in ‘public schools’ such as Eton, Harrow, and Winchester. These usually require the payment of high fees, are often single-sex, and may either be day schools – pupils return home in the evenings – or boarding schools. Uniforms are compulsory in most of these schools, in grammar schools, and in many comprehensive schools. A small minority of children are educated at home. Schools in the UK, apart from in Scotland, follow the National Curriculum, which means that all schools follow the same syllabus. The school year consists of three terms, and at the end of each year pupils automatically progress to the next level of study, and do not repeat the year, even if they fail the end of year exams. Some schools divide pupils into groups according to ability: this is known as streaming. In the first three years of secondary education, pupils study English, Maths, Science, Design & Technology, Information & Communication Technology (ICT), History, Geography, Modern Foreign Languages, Music, Physical Education, Citizenship, and Religious Education. They then choose between eight and ten subjects to study for GCSE (General Certificate of Secondary Education) exams when they are 16.