Fifty years ago, the Bachelor’s was pretty standard for teachers. True, 1 in 4 went on to get a Master’s. But 1 in 6 didn’t even make it to a B.A.

Degree attainment - over time (revised)

Times changed. Higher education has boomed in America, and many states upped their degree requirements for teachers. Now, almost 2 in 3 teachers have Master’s degrees, while more than 99 out of 100 have at least a Bachelor’s. (Doctor’s remain pretty rare.)

Source: National Center of Education Statistics

Disclaimers: The Master’s category, as you’ll notice, includes specialist degrees.