The Ontario College of Teachers Website has application information.
Calvin alumni report that in a few cases additional courses are required, depending on the subject area.
After you have obtained your Michigan Teaching Certificate, contact Stacie Guthrie to request that a "Statement of Professional Standing" be mailed to the Ontario College of Teachers, 121 Bloor Street East, Toronto ON M4W 3M5 Canada.
Michigan Department of Education
Office of Professional Preparation Services
P.O. BOX 30008
Lansing, MI 48909
Contact the Teacher Certification Office at (616) 526-6208 or firstname.lastname@example.org