This text is an exploration of working class secondary education over the past century. It focuses on social distinctions in secondary education, and especially on initiatives designed to provide for the mass of the population, or the "ordinary child". These initiatives culminated in the secondary modern schools, which a generation ago were the main providers of secondary education in England and Wales. The book discusses general social and historical issues relating to working class secondary education, and the emergence of the idea in the late 19th century. It examines the experiment of the Secondary Modern schools in detail to appraise the reasons for their rise, their successes and their ultimate failure. It also pursues the underlying theme of differentiation in secondary education since the 1960s, its continuing influence despite the spread of comprehensive schools over that time, and its role in the educational and social debates at the end of the century. The text examines the emergence of the idea in the late 19th century, the experiment of the secondary modern school, and the underlying theme of differentiation prevalent in secondary education since the 1960s.