You might be thinking graduate school is the logical step for continuing. Graduate school is not for everyone. If you are unsure of the direction of your career, then you might want to take a step back before committing yourself to graduate school. In graduate school, most students are expected to have a clear and defined path to their interested area of specialization. Teaching math is just one of the options for graduate school.
Mathematics teachers are in great demand in ALL aspects of learning.
Secondary school teaching requires a master's degree in many states. Teaching in two-year colleges has a minimum of a master's degree. A doctorate is encouraged. Instructors in this environment can expect to teach a wide variety of topics, from technical mathematics to arithmetic, from business-math to differential equations. Quality teaching to every student's level is stressed.