<p>My BS is in Math. My current major is CS. Employers will not hire you as an engineer unless you already know your stuff. If they hire you as a software engineer, that means you already know how to write programs in C++ or whatever language. If your major is CS and your minor is math, employers will like that but if your major is math and your minor is CS, they will take those who major in CS before you. As far high school teaching goes, the shortage of qualified teachers are in math, science, and special education. If you major in these areas, you will have no competition because of the shortage. For subjects without shortage, you will have competition from other teaching applicants. As as community college teaching goes, some subject areas require doctor’s degree because there are many applicants, examples are English and other liberal arts degree. Math and other science subjects doesn’t have a lot of applicants for teaching, so they may hire masters degree for community college. As far as teaching credential goes, you might take one year in college after math, unless your math degree is in Secondary Teaching. Some college have that option.</p>