Millions of children all over the world are not getting an education, a report by the United Nations has shown.
As many as 115 million kids are missing out on lessons, and girls are affected more than boys, the report said.
The United Nation's children's group, called Unicef, said it wanted countries to focus on getting as many girls in schools as boys by 2015.
Some of the worst areas for not educating as many girls are South Asia, Africa and the Middle East.
Unicef did recognise however that many countries would not be able to make education equal for girls and boys by 2015, as they would need more time to do it.
"Education is about more than just learning. In many countries it's a life-saver, especially where girls are concerned," a Unicef spokeswoman said.
One of the worst areas for children's education is west and central Africa, where conflicts in places like Liberia and Sierra Leone have made it even harder for kids to get to school.
And in South Asia, around 42 million children do not go to school at all.
Unicef called for all countries to make educating all their children a priority.