The pilot of Microsoft's Innovative Schools Program has aimed to support 12 diverse schools around the globe - secondary schools and primary schools, private and public, schools in traditional systems and schools that are breaking the mold. What the schools have in common is a desire to prepare students for the 21st century. The program provides them with frameworks for making decisions about reform and opportunities to discuss their plans with each other and with education experts. Evaluating such a locally determined program presents unique challenges; what can we say about the program as a whole that will take into account each school's unique goals? In this presentation, we will describe our ground-up process of determining evaluation benchmarks, which involved discussion with all the schools, and our distributed model of evaluation, which allows for collection of data that are at once local and global. #2009Conference #Evaluation2009 #Cluster,Multi-SiteandMulti-LevelEval