maybe their &quot;attitudes toward school were deteriorating&quot; because they were in classrooms slowed by the non-preschool students.<p>it&#x27;s always seemed to me that policy like &quot;no child left behind&quot; is fundamentally misguided:  teaching for average rather than excellence.  isn&#x27;t society better served by a few outstanding students meeting their maximum potential than it is by the group meeting some mean?