6 giug 2016 anni - "How Bill Gates pulled off the swift Common
Core revolution"
The Washington Post 2016, Jun 6
Descrizione:
The pair of education advocates had a big idea, a new approach to transform every public-school classroom in America. By early 2008, many of the nation’s top politicians and education leaders had lined up in support.
Aggiunto al nastro di tempo:
Data: