I think one trend that isn't listed here, and is important, is the ever widening gap between high poverty and low poverty students at the 12th grade level. (aheadoftheheard.org)
However, it was a gradually widening gap, but narrow enough to fool the media and the public. (drtimball.com)
Schools that show increasing numbers of «lost» students or widening gaps between high - scoring and low - scoring students should not become «models» for other schools. (fairtest.org)