Air war as imagined by German weekly Die Woche in 1931 https://t.co/jATQKZLR8w
“Globally, a school shutdown of 5 months could generate learning losses that have a present value of $10 trn. The
October 22, 2020
“Globally, a school shutdown of 5 months could generate learning losses that have a present value of $10 trn. The world could stand to lose