Today more than 130 million girls do not go to primary and secondary school worldwide. In Sierra Leone, only half of girls aged 15 to 24 years are able to read and write. But educating girls greatly improves lives in the long run. A child born to a mother who can read and write is 50% more likely to survive past the age of 5. A girl with an extra year of education can earn 20% more as an adult. Girls with 8 years of education are four times less likely to marry as children.