Despite unprecedented increases in school enrollment over the last decade, there is still a global learning crisis—worldwide, 250 million children are not acquiring basic literacy and numeracy skills, 130 million of whom have attended at least four years of school. 121 million children are not in school, and the number of out-of-school children living in crisis and conflict-affected countries is growing. Some 114 million youth aged 15 to 24 cannot read or write a simple sentence; nearly two thirds are women.