<p>The reason I didn’t think the idea was new was because I sent my kids to a pre-school that specialized in multi-culture and extreme range of SES. I did that because I had learned somewhere that it benefitted child development and learning. My observation from the pre-school experience was that it was the low SES and minorities who benefitted most from the experience.</p>
<p>I would expect the same situation to apply at any level of learning.</p>