Anyone interested in mathematics education is invited to become part of the OCTM professional community. 

Please click here to go to our online membership form, where you can join or renew* online with a credit card (or, you can fill out the form online and then send a check by regular mail).  You will receive automated e-mails from our membership site following your submission of the form and payment.  Memberships are processed as soon as possible.  

  • The cost is $25 for one year or $60 for 3 years. 
  • First-year teachers can join OCTM for one year for only $10. 
  • Full-time student memberships are available for $5 per year. 

*Members may also report changes of address and other membership information online.  Log in here, and then click "Edit your member profile".


If you are unable to log in to renew or update your information and have already tried the "Forgot password" link at the membership site, 


if you have other questions regarding online memberships and renewals, please e-mail Kate Meier, Online Membership Manager, at .    


If you do not wish to use our online form to join or renew, you can download and mail this form with your check: OCTM Membership Form .  Questions regarding this form should be addressed to or to Kim Yoak (Executive Director) at 330-606-3224.

OCTM also offers a special membership for those who would like to become a joint member of OCTM and SECO (Science Education Council of Ohio) for a total of $38 per year.  Please visit this link at the SECO website (and choose the joint OCTM/SECO option) to join both organizations in this way.  (There is no longer a paper form for this membership option.)

If you are interested in joining NCTM (the National Council of Teachers of Mathematics), please click on the NCTM logo at the bottom of this page.