Team R & R over at the Center for American Progress has an that explores some of the themes Teacher Beat wrote about in with respect to the cost-effectiveness and impact on student achievement of laying off teachers by seniority level rather than effectiveness.
Eduwonk (and possible Duncan appointee?) Andy Rotherham picks up the thread
We suspect there will be more chatter about this if the financial situation doesn鈥檛 improve and districts are forced to cull more teaching positions. Stay tuned.