Thanks for sharing the article, I found it very interesting. I have always known that high SES districts do better (and people tend to ignore the fact that they are high SES and just look at the outcomes). The district we left was on the affluent side of things but made less than 5 years progress in 5 years. Given the high class sizes, chaos in the administration, budget problems, etc. I can see why. I would like to know what the successful districts are doing to make the progress that they are, but the article didn't give too much information. I think it's also important to remember that there is a limit to how much standardized test scores can tell us about what kids are really learning. I opt my kids out because the tests only measure grade level standards and for my son in particular, the test would never pick up how high functioning he is in math because the test doesn't measure that knowledge. So, interesting info, but just part of the picture.
