> In the next five years, most of America’s most experienced teachers will retire. The Baby Boomers are leaving behind a nation of more novice educators. In 1988, a teacher most commonly had 15 years of experience. Less than three decades later, that number had fallen to just three years leading a classroom. This might not be a bad thing. I remember the late 60's and early 70's being an incredibly innovative time in…
> Once somebody has taught for three years their teaching quality does not change thereafter. The variation is very, very small.