Excellent, reasoned, data-driven critique of the corporate reform/high-stakes testing/attack the teacher model currently being proposed across the country.
As Diane Ravitch commented on her blog, which also posted this, "Pay particular attention to his evidence about the effects of charter schools." And consider as well the core issue: child poverty.
See some good figures on how poverty shapes educational outcomes in his slides, available at:
http://www.nctm.org/uploadedFiles/Conferences/Annual_Meetings/2013-Denver/-NCTM%20Iris%20Carl%20Talk%204-19-13.pdf
