Millions of children do not have access to schools.
The second Millennium Development Goal is that all children obtain basic school education. The objective of the MDG 2 is that the right to learn is guaranteed to all children, boys and girls alike, rich and poor, in developed and developing nations alike.
Right now, this is not so. In Sub-Saharan Africa for instance, only 2 out of 3 children receive primary schooling. And it is especially the girls who get left out.
The current effort is to support African governments and civil society in following the example of the Asian and South American nations, that are successfully extending universal primary education to most of their children.