Do you love teaching. Are you great at math. Then become a. Mathnasium Math Instructor. Mathnasium, the Math Learning Center. is now hiring for our San Mateo, location. High school juniors and seniors, college students or recent graduates are encouraged to apply. NOTE: We do not hire for summer-only positions. Please do not apply if you can only work for the duration of the summer. We teach math in a way that makes sense to students in 1st grade ...