Thanks to Kenya’s free primary education initiative, many children who had dropped out of school are back in class. "I would still be at home, because my aunt who took me in after my parents died could no longer afford to pay for my fees," said Akinyi, a class-seven pupil at Ayany Primary School in Kibera, a sprawling shantytown in the Kenyan capital of Nairobi. Kibera is said to be one of the largest slums in Africa, with hundreds of thousands of residents.