There is a big misconception about education degrees. At the high school level, most teachers have a degree in their subject of one closely related with education coursework required for their certificate.
For example, my undergraduate degree was in history, with almost another degree in math because I had been a computer science major for most of my time in college. I took and passed the certification exams for math and social studies at the same time and was given certificates in both areas. To get my certifications I had to complete several education courses and 2 additional math classes.
I taught for 7 years, mostly math and slightly less social studies classes. I then attended graduate school and received my master's degree in educational leadership. Other than that, I do not have an education degree.