1 “...Studies have shown that learning outcomes are related to the amount of time students engage...”

2 “... and sufficiently trained teachers. But time-on-task studies conducted in low-income countries show that relatively...”

3 “... limited achievement. A multi-country study matching reading and instructional time data showed...”

4 “... script. However, the schools of the poor have less time for their students. There is teacher absenteeism...”

5 “..., 2010, 2011a, 2011b). The reasons are linked to limited instructional time, textbooks or parental help...”