Key Stages
A Key Stage is a stage of the state education system in England, Wales, Northern Ireland and the British Territory of Gibraltar setting the educational knowledge expected of students at various ages, often associated with a test or evaluation. The term is also used in some other countries such as Hong Kong and Australia (some states) although the ages at which each Key Stage applies differ from England. The Scottish Curriculum for Excellence does not use the concept of Key Stages in a comparable way to the other countries of the UK [3]