www.whatworks.ed.gov
As an initiative of the U.S. Department of Education's Institute of Education Sciences (IES), the What Works Clearinghouse (WWC) was created in 2002 to be a central and trusted source of scientific evidence for what works in education.
Språk: English Webb Säkerhet: 91% Page Rank: 7 Uppdaterad: 2013-08-09