Are you a member of a subject association?  A key element of professional development is feeling part of a community, being sustained by it, and contributing to it, and NCETM strongly encourages all teachers of mathematics to join one or more professional subject association for mathematics. Click on the links below to find out more:

AMET (Association of Mathematics Education Teachers)

ATM (Association of Teachers of Mathematics)

MA (Mathematical Association)

NAMA (National Association of Mathematics Advisers)

NANAMIC (National Association for Numeracy and Mathematics in Colleges)