Here's a link to an interesting article in the NY Times today concerning the widening achievement gap due to income. While there is nothing new in the fact that students from more affluent homes do better, the research on this shows that the gap is even wider than originally thought.
http://www.nytimes.com/2012/02/10/education/education-gap-grows-between-rich-and-poor-studies-show.html?_r=1&nl=todaysheadlines&emc=tha2
Sue Blanchette
http://connected.socialstudies.org/Go.aspx?c=BlogViewer&BlogKey=156ef4d5-9401-45bf-8801-c0964f74889e