By the numbers:
In an interview on the Huffington Post in December 2012, TFA founder and CEO Wendy Kopp said the following:
"On average, our corps members stay in the classroom for eight years."
Anthony Cody of the Living in Dialogue blog at Ed Week asked for substantiation of this claim because the generally previously accepted number was more like only 10-15% of TFAers stay past their third year.
Others doing the math found that one study found that about 40% of TFAers leave after two years and another 25% after four years. So if Kopp's claim is true, then 40% would have to be there for 14 years and another 25% for 12 years. That's
