Be a coach. Help a coach: MATHCOUNTS coaches oversee team practice sessions and coordinate the school’s involvement in local and state competitions. Often these are math teachers, but they can also be parents or volunteers from the community. If you can’t be coach, you can volunteer to assist one.
Special events volunteer: You can assist with special events honoring students and promoting math, such as a MATHCOUNTS Day, or make a school presentation about using math in the real world.
Exactly what a volunteer decides to do and how much time he or she contributes is strictly up to each individual.