P.E. & Health
Mr. Callahan is a fun & energetic Physical Education & Health teacher. Mr. Callahan's joined the OGS family in 2021. Mr. Callahan attended Central Michigan University where he earned his Bachelors of Science degree. His roots are set in Battle Creek, MI, so he roots for ALL Detroit sports teams! Mr. Callahan wants every students to understand the value of being a great teammate!
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