A new study conducted by the National Center for Education Information [1] has uncovered both startling similarities and arresting differences between teachers based upon age, background and political inclination, the Huffington Post reports. The report found that the average age of teachers is shifting, [2] with the number of educators in their twenties rising to 21 percent this year from 11 percent in 2005. By contrast, the age of teachers over 50 has fallen, dropping to 31 percent this year from 42 percent in 2005. The study attributes this pattern to a wave of teacher retirements, with new recruits filling up the ranks…