Umm.. we might want to reconsider, and start teaching content again. Of course, most teachers don't know any content.
I used to teach. I have degrees in Chemistry and Biology. I took my teacher programs in order to obtain certification. I did not particiapate in a Teacher degree program. I was a good student. I love my subjects and believe kids in Chemistry need a rigorous course to prepare them for college Chemistry. A principal told me (I kid you not) that he didn't think smart people made good teachers. He didn't like me. I didn't do enough group teaching (making molecules out of gumballs etc).