How Teach for America evolved into an arm of the charter school movement
When the Walton Family Foundation announced in 2013 that it was donating $20 million to Teach For America to recruit and train nearly 4,000 teachers for low-income schools, its press release did not reveal the unusual terms for the grant.
Documents obtained by ProPublica show that the foundation, a staunch supporter of school choice and Teach For America’s largest private funder, was paying $4,000 for every teacher placed in a traditional public school — and $6,000 for every one placed in a charter school. The two-year grant was directed at nine cities where charter schools were sprouting up, including New Orleans; Memphis, Tennessee; and Los Angeles.
Quantum physics experiment shows Heisenberg was right about uncertainty — in a certain sense
The word uncertainty is used a lot in quantum mechanics. One school of thought is that this means there’s something out there in the world that we are uncertain about. But most physicists believe nature itself is uncertain.
Intrinsic uncertainty was central to the way German physicist Werner Heisenberg, one of the originators of modern quantum mechanics, presented the theory.
He put forward the Uncertainty Principle that showed we can never know all the properties of a particle at the same time.