Absolutely not. Kids are hardly ever in school enough as it is anyways. Even holiday recesses are going to be longer. Add to the study halls, normal classroom disruptions, time in between classes, lunch, and a large portion of actual teaching dedicated to FCAT study, there really isn't much teaching and learning going on at all.
This just adds to the lack of homegrown talent in the field of mathematics and engineering, which will end up being plugged in by dedicated Asian and European graduates. Maybe its time colleges got ride of "fluff" degrees like liberal arts, pastry making, knitting, rock wall climbing, and above all, political science.
Recap:
Dumb American kids get.....dumber.