From CNN: CNN.com - Survey: Large turnover expected in teaching ranks - Aug 18, 2005: "Younger people remain a big force in public teaching, with one in three teachers 39 or younger. But many of those teachers no longer think of teaching as a 30-year career.
'There is a growing realization that the mind-set is shifting, that they don't consider teaching to be a lifelong profession,' Rhee said.
Maia Sheppard is one of those people. She worked for three years in a New York City public school, where she taught global history, wrote curriculum and helped immigrant students try to learn English and meet state standards in several other subjects.
After three years, she had enough and quit teaching.
'It was just all the time, nonstop,' she said. 'I just didn't have time to do anything else but school.'
Now 32 and living in Minneapolis, Minnesota, Sheppard is pursuing a doctorate in education."