There were comprehensive studies done by education evaluation experts. Their recommendations (like those listed in the GP) were completely ignored because of f

There were comprehensive studies done by education evaluation experts. Their recommendations (like those listed in the GP) were completely ignored because of funding and politics... The meta-problem with schools is you have amateur policy makers (aka Politicians) making decisions based on voting outcomes, rather than expert policy makers making decisions based on student outcomes. There isn't always going to be an achievement gap. Look at japan's literacy stats...