One-to-one phone sessions substantially increased students’ numeracy test scores in low- and middle-income countries that experience emergencies that disrupt schooling.

One-to-one phone sessions substantially increased students’ numeracy test scores in low- and middle-income countries that experience emergencies that disrupt schooling.

The eight-week programme led to triple the learning gains of average learning interventions during school closures.

Hear the biggest stories from the world of science | 09 September 2026