OFSTED is the principal body which inspects schools in England and Wales. ISI is the agency responsible for the inspection of independent schools who are members of the Independent Schools Council (ISC) Associations.
Looking at a school’s inspection report can help you choose your child’s school. A report should indicate how well the education caters for pupils of different needs and abilities, how broad the education is, what the atmosphere of the school is like in terms of the ethos, behaviour of pupils and relationships, and how well pupils are cared for.
Reports, however, are no substitute for a personal visit to the school to evaluate for yourself the extent to which you think it will suit the talents, character and needs of your own child.