Special school refers to the type of schools who teach pupils that require a "Special Education", sometimes known as having Special Educational Needs (SEN). Special education, also known as special ed, SPED, or defectology, euphemistically describes an educational alternative that focuses on the teaching of students with academic, behaviorial, health, or physical needs that cannot sufficiently be met using traditional educational programs or techniques. Whilst many still argue that the those with SEN's receive a better education at specialist schools, they are falling out of favour in the UK and instead the pupils with SEN's are being integrated into mainstream schools. Those that argue for integration often claim that this provides a better all round education not only for those with SEN's but also the general pupil population through exposure to greater diversity, those against often claim that the primary reason is that it is a lot cheaper to place pupils with SEN's in a mainstream school rather than maintain separate establishments.