I'm going on vacation for a few days. Alexandra Usher is going to be guest-blogging in my absence. Alexandra is a Research Assistant at the Center on Education Policy in Washington, D.C., where she has authored reports on the original federal land grants for education, adequate yearly progress, and will soon be co-authoring a review of voucher research. She began her career in education by spending a year as a Fulbright Teaching Assistant in Nuremberg, Germany and earned her B.A. in International Affairs from The George Washington University. She received an outstanding public school education in Chicago's northern suburbs and hopes to one day ensure that children in all parts of the city have the same opportunity.