Remainders: Highlights from the Atlantic's Joel Klein letter pile

Joel Klein’s op/ed got more responses than any other Atlantic piece this year. A sampling. (Atlantic)
The city employs at least a dozen octogenarian teachers. Meet three of them. (Daily News)
Advice about what to do if your math teacher frequently goes off on political tangents. (Dear Prudence)
An analogy: Using bad data to assess reality is like using bad binoculars to see. (James Boutin)
A nonprofit news site got a $100,000 to launch a Brooklyn bureau. Congratulations to City Limits!
Could Arne Duncan’s veiled criticism of Common Core objectors doom the whole project? (Flypaper)
Some folks on both sides of the education aisle are worried about new NCLB waivers. (Politics K-12)
A teacher’s letter to himself on the eve of his first day in the classroom, two years ago. (Mr. Foteah)
More flesh, aka “content maps,” is being thrown onto common standards’ bones. (Curriculum Matters)
An argument that state test scores’ stability doesn’t make them any more reliable. (NYC P.S. Parents)
A new data tool created by Colorado makes it easy to look at progress, or its lack. (Gary Rubinstein)