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

Click here to join or renew onlineScroll down for additional details.


What opportunities do you and your mathematics colleagues have to participate in informed, collaborative professional growth?  If you are an administrator, do your teachers participate in OCTM?  You can help colleagues become part of this organization comprised of a strong network of 3,000+ educators in Ohio.
  • Information you can share about OCTM: Share this video in which 5 OCTM members talk about their reasons for being involved, and share this file that includes 10 specific ways to be involved in OCTM all year long.  Visit the links to the left for more details.

Additional ways for you to be involved:

  • We invite you to respond to this brief survey that will help OCTM leaders to provide opportunities that support professional growth.
  • On Twitter, watch for tweets from OCTM members sharing their professional learning and growth at @ohioctm and #octmconnects .
See a list here of all those who have invited at least one new member to become part of OCTM since Fall 2018.  Many of these colleagues have been inviting people to OCTM for many years.  This is how we grow!


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 Pam Steinkirchner, 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 Pam Steinkirchner, Online Membership Manager, at .

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.