From The Wall Street Journal:
"People who come out of college with a degree in education and not a degree in a subject are severely handicapped in their capacity to teach effectively," Mr. McCullough argues. "Because they're often assigned to teach subjects about which they know little or nothing." The great teachers love what they're teaching, he says, and "you can't love something you don't know anymore than you can love someone you don't know."
Much more here.
