"@ <a href=""https://www.youtube.com/watch?v=hppbxV9C63g&amp;t=2h05m40s"">2:05:40</a> Dr. Haier states  that compensatory schools have failed and therefore it’s reasonable to conclude that improving test scores isn’t possible through environmental means. This is mistaken on two grounds. One", as someone who actually attended those schools (Head Start), I can tell you that such schools are just glorified babysitting centers. Secondly, he assumes that the relevant environmental variable is classroom instruction, but it’s more likely that cultural values are the most important factor. I find it amazing that people believe that you can dump information into people’s heads irrespective of whether they want to learn or not.,(reply>), You can't force someone to learn. The assumption is they aren't intrigued by knowledge, but there are always those who don't want to do the work, or are slower.