COSAT is a science and technology high school teaching some of South Africa's poorest kids. Yet it has one of the highest graduation rates of any public high in the country. Its principal, Phadiela Cooper, is one reason why.
As president of South Africa, Mandela pushed for equality between blacks and whites in the nation's schools. Anders Kelto of PRI's The World went to a school he's been following for a year to find out what teenagers were feeling after Mandela's death.