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 generally processed within one day.  

  • 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. 

Questions regarding online memberships and renewals can be addressed to Kim Yoak, OCTM Executive Director, at .  Members who are not in the process of renewing may also contact Kim to report changes of address or other membership information -- and you will soon be able to provide these updates online through your membership profile. 

If you do not wish to use our online form, you can download and mail this form with your check: OCTM Membership Form 

OCTM also offers a special membership for P-6 teachers who would like to become a joint member of OCTM and SECO (Science Education Council of Ohio) for a total of $38 per year.

Download the joint membership form:  OCTM/SECO Joint Membership Form 

Questions regarding the paper membership forms should be addressed to the OCTM Membership Secretary:

Sister Mary Theresa Sharp, SND
13000 Auburn Road
Chardon, OH 44024-9330
440-286-7101 v.m. 3132