Preparatory (or prep) schools are junior schools that traditionally prepared pupils for Common Entrance (CE). Prep schools take pupils from the age of 7 or 8 and may have pre-prep departments, taking pupils from age 5. Some have links with, or are prep departments of, specific secondary schools. In other schools the pupils go on to secondary schools all over the country. Heads of good prep schools will know the ropes and are experienced at matching their pupils to the secondary schools they feed. Many belong to the IAPS.