Best blog by far on D.C. test scores

Jay Matthews:

Reading the blog of the mildly mysterious G.F. Brandenburg, I gathered a clue to why the reports there are so easy to read for geezers like me who squint a lot at computer screens. Brandenburg reveals in passing that he retired as a D.C. teacher recently, so he is likely not too far from my age cohort, and understands us deeply.
Bless him, and not just for the amazing clarity of his written words. He is savage toward D.C. Schools Chancellor Michelle A. Rhee, whom I highly regard. But there is no substitute for his analysis of what is happening with D.C. achievement scores, and the ways they are being used for various political purposes.
Here is his deft analysis of what has happened to elementary scores, which have gone up, and then down, in the Rhee era:
Contrary to the spin put on things by [D.C. Mayor Adrian] Fenty and Rhee, at the elementary level, virtually all of the increases on DC-CAS scores over the past 4 years happened during the period ’07 to ’08. And it so happens that 2006 was the first year that DCPS switched to using the DC-CAS as its major standardized test, instead of using the Stanford-9 (also known as the SAT-9). That was under superintendent Janey.