![](https://assets.weforum.org/article/image/ssRLxdhHU9pnNBY5uFp2uudgieZamom_7kN2Dn5GyIE.jpg)
Education and Skills
80 million pre-schoolers are failing to meet development milestones
In developing countries, one third of three and four year olds don’t reach basic milestones in cognitive and/or socioemotional growth.
The Harvard T.H. Chan School of Public Health is the public health graduate school of Harvard University.