This report aims to 'crack the code' by deciphering the factors that hinder and facilitate girls' and women's participation, achievement and continuation in science, technology, engineering and mathematics (STEM) education and, in particular, what the education sector can do to promote girls' and women's interest in and engagement with STEM education and ultimately STEM careers.

Abstract: Studies have shown that learning outcomes are related to the amount of time students engage in learning tasks. However, visits to schools have revealed that students are often taught for only a fraction of the intended time, particularly in lower-income countries. Losses are due to informal school closures, teacher absenteeism, delays, early departures, and sub-optimal use of time in the classroom. A study was undertaken to develop an efficient methodology for measuring instructional time loss. Thus, instructional time use was measured in sampled schools in Tunisia, Morocco, Ghana, and the Brazilian state of Pernambuco. The percentage of time that students were engaged in learning vis-à-vis government expectations was approximately 39 percent in Ghana, 63 percent in Pernambuco, 71 percent in Morocco, and 78 percent in Tunisia. Instructional time use is a mediator variable that is challenging to measure, so it often escapes scrutiny. Research suggests that merely financing the ingredients of instruction is not enough to produce learning outcomes; students must also get sufficient time to process the information. The quantity-quality tradeoff that often accompanies large-scale enrollments may be partly due to instructional time restrictions. Time wastage also distorts budgetary outlays and teacher salary rates. To achieve the Millennium Development Goals students must get more of the time that governments, donors, and parents pay for.

"What Works in Girls Education" summarizes the extensive body of research on the state of girls education in the developing world today; the impact of educating girls on families, economies, and nations; and the most promising approaches to increasing girls enrollment and educational quality.

Analyses the extent of disparities in different regions and the educational conditions facing men and women. Reviews the different measures and strategies which have been designed and tried out in different countries to increase and improve girl'a education.