The best math teacher I ever had, an inspirational force who was a major reason I got through high school happy and successful, had an undergraduate degree in..

The best math teacher I ever had, an inspirational force who was a major reason I got through high school happy and successful, had an undergraduate degree in... something. Not sure it was math, actually. Definitely no education degree, though. Not even an undergraduate one. Poor guy couldn't even get an interview today. To see if you're a decent teacher today you must first incur enormous educational debts. Then you try teaching. Mindless credentialism is a terrible force.