In England, a partially selective school is one of a few dozen state-funded secondary schools that select a proportion of their intake by ability or aptitude, permitted as a continuation of arrangements that existed prior to 1997.Though treated together by current legislation, they are of two types: bilateral schools in remnants of the Tripartite System, and former grant-maintained schools that introduced partial selection in the 1990s.While technically classified as comprehensive schools, they occupy a middle ground between grammar schools and true comprehensives, and many of the arguments for and against grammar schools also apply to these schools.Although there are relatively few schools of this type, several of them score very highly in national performance tables, and are among the mo