My ultimate goal is to teach undergraduate level mathematics, that is, classes such as calculus and differential equations, as well as introductory proof-based courses like linear algebra, abstract algebra, and real and complex analysis. Why? I just love to teach people who are interested in learning math, and I have the strong belief (it's more of a certainty) that all interested mathematics students can appreciate and find the joy to learn any of these core classes if they receive the right approach. I am willing to teach like this patiently because I like it and I'm willing to devote to it. I feel very comfortable teaching math.
I am receiving a bachelor's degree in mathematics from UC Berkeley in May 2016. Needless to say, I like math a lot and I am excited to learn math at a higher level in grad school.
My question is, given that my goal is to become a math educator and obtain a secured job, do I need to pursue a PhD in mathematics?
I know that the whole idea in getting a PhD is to do original research, but to be honest, this is not the exciting part for me to go to grad school. This is merely secondary for me. I would even say it is tertiary since I am more enthusiastic about studying more math and being a graduate instructor. I know community colleges, liberal arts colleges, and even some universities hire lecturers (whose only job is to teach). Should I get into a master's program to achieve my dream job instead?