Huh?
Valerie Strauss is confused:
Bill Gates, one of the smartest and richest guys ever in the history of smart and rich guys, told the annual convention of the American Federation of Teachers that he just realized that teaching is super important.
Really.
He told the assembled teachers (according to the Bill & Melinda Gates Foundation website):
“There is an expanding body of evidence that says the single most decisive factor in student achievement is excellent teaching. You’ve known this for a long time. We’re all learning it now.”