The sound of children's voices reciting in unison could be heard from afar, as our mission approached a school in rural Cambodia. Inside a second-grade classroom, students took turns at the blackboard. One pointed with a stick at a list of words written by the teacher, while the rest recited. A...

The Education for All (EFA) initiative depends on students being taught by suitably and sufficiently trained teachers. But time-on-task studies conducted in low-income countries show that relatively little time is being spent on instruction, including the critical teaching of reading. Teachers...