Pros
If you are a math-person, you should definitely look into working at Mathnasium. Working at Mathnasium beats working for the leading competitive learning centers, some by whom I have previously been employed. MATHNASIUM only does MATH. As a mathematician, I appreciate coming to work knowing that I will not have to teach grammar. Instead of working with a single student for an extended period of time, in most cases we have an opportunity to work with a variety of students simultaneously. In some cases, this results in group discussion on a common topic. In other circumstances, there is the exciting nature of doing a few different types of math at the same time. If an instructor only had one Mathnasium student for an hour, he or she would still have an opportunity to teach several branches of math. This is a perfect job for anyone who believes their future path may lead the way towards a career in math education. While a learning center I had previously worked for would set my schedule with two hours with a single student on a given work-day, Mathnasium always gives me a shift of at least 3.5 hours. Furthermore, if my scheduled student would decide not to attend the competitor's center at which I used to work, I would arrive as scheduled, wait half an hour for the student to arrive, and then be sent home with zero pay for the day. At Mathnasium, because instructors work with multiple students simultaneously, this problem never arises, and even if it did, Mathnasium's Center Directors will not send instructors home if they are scheduled to be working. If you expect to work four hours in a given day, you will. Although Mathnasium Instructors don't exactly make beaucoup bucks, we are compensated better by Mathnasium than by the leading competitor, and we have the incentive to significantly raise our wages by completing "Mathnasium University" training modules. Mathnasium is a positive learning environment and working there will reward instructors with more than just a paycheck. Instructors at Mathnasium develop teaching skills and even learn new mathematical tricks along the way. Most of all, working at Mathnasium gives instructors the opportunity to help young people build confidence and achieve their goals.
Cons
The only stressful thing about working at Mathnasium is the occasional difficulty with scheduling students, especially those who are returning from family vacations and trying to squeeze their missed time into the schedule. In this case, we may only be expecting six or seven students to arrive when the center opens, so only two or three instructors will be waiting when a dozen or more young people show up all at once.