Evan Davis meets the pupils, parents and politicians at the heart of one of the most bitterly contested changes in education since the Second World War: the rise of the comprehensive school.
In 1945 the eleven-plus exam symbolised the brave new world of opportunity where a grammar school place was available to anyone, whatever their background.
But right from its earliest days the exam had its critics.
They envisaged a different kind of education, where all pupils - whatever their ability - went to the same school.
Evan rediscovers the new ideas pioneers, and hears from some of the very first pupils to go to a 'comp'.