High School Math Teacher

I am a high school student and I want to become a High School Math Teacher. The only problem is that I do not know what I'd choose great. Should I take Pure Mathematics or Applied Mathematics ... and the process of credential teachers? I intend to go to Cal State Fullerton Cal Poly Pomona or.

applied mathematics. Teachers generally do not need theory, unless you intend to become a PhD, so I would say to the theory.