Less than half the children in sub-Saharan Africa can neither read nor write: a quarter of primary-school-age children reach the fourth year without having acquired the basics and over a third do not reach the fourth year. ccording to the 2010 EFA Global Monitoring Report, “millions of children are leaving school without having acquired basic skills. In some countries in sub-Saharan Africa, young adults with five years of education had a 40% probability of being illiterate”. The teacher training systems are generally not able to meet the quantitive and qualitative needs of training. In Chad, for example, only 35.5% of teachers are certified to teach.