"You are sick and it is the weekend. You have a fever and you're sweating and vomiting so you fear you have malaria. You need medical attention. All the money you have is what is in your pocket, a total of $3.59. You never went to school so you do not know how to read or write. You live in the Kibera slums."This was one scenario played out on a leafy Washington campus, as students in the summer program at the Washington International School struggled to understand life on the edge for children in Nairobi's notorious slums.