There is a learning crisis. Fifty-three per cent of children in low- and middle-income countries are in ‘learning poverty’, i.e. they cannot read and understand a simple text by the end of primary school age. In sub-Saharan Africa, the learning poverty rate is 87 per cent overall, and ranges from 40 per cent to as high as 99 per cent in the 21 countries with available data. Teachers attending lessons and spending quality time on task is a critical prerequisite to learning. However, in sub-Saharan Africa, there is evidence that teacher absenteeism ranges from 15 to 45 per cent.