Daviess County, KY had an intriguing program to build better brains, by teaching music, chess, foreign language, and folkdance to every single kid in their system, K-12. Not so that they would all be musicians or chessmasters, but so that many areas of the brain would be stimulated and integrated. It was called Graduation 2010, because this would be the year that a class had gone all the way through the program for 13 years. I was very hopeful that this would reveal important new information about education that really worked. Preliminary signs were mildly good.
I tried to track down the data today, wanting to see how much improvement this county-wide, broad, intensive program worked. I had trouble finding it - already a bad sign, as it would likely have been trumpeted and big news if the gains were dramatic. That no one is talking about them suggests... ah, well.
There might be a slight increase in test scores for the county compared to the state average, but not much. And a few measures even went slightly down over time in the Daviess County. It may not be worth the candle.