Is Teacher Churn Undermining Real Education Reform in D.C.?

An Op-ed in this Sunday's Washington Post calls attention to the rate of turnover of both teachers and principals as a huge barrior to making our schools better. The column is up on the Web here. Education analyst Mark Simon argues the turnover rates are so high we're losing a lot of our best teachers and creating a hostile culture in too many schools. Turnover in charter schools is even higher.