My wife is a teacher. An Earth Science teacher. For the eighth grade. Yeah, I don't get it either.
Super boring subject. Worst grade in the world to teach, what with all those insanely raging hormones. But that's where she ended up, and I'll admit, it is pretty cool when she points out something I didn't know about the weather or the stars.
When we first got married, she was going through all the training necessary to become a teacher. A ridiculous amount of studying. Planning. Student Teaching. She even had to videotape herself giving a lesson, as well as undergo a number of classroom observations. In other words, it wasn't as simple as grabbing a ruler, heading to the front of the classroom, and, BAM, you're a teacher.