The Chicago Tribune today contained this commentary by Greg Duncan and Richard Murnane.  Duncan and Murnane explain why economic inequality is the real root of learning disparity between students in urban schools and elsewhere.

What to do?  Early investment in children through quality pre-school programs. 

But the issue of economic inequality needs to be directly addressed through economic policies that strengthen poor families, for instance such as the Earned Income Tax Credit.

There is no beneft from not doing the most good when it comes to children.