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Shawn N. Callahan

Retired chemistry teacher from Harbor Grammar School

  • 🇨🇦 Ottawa, Ontario, Canada
  • Harbor Grammar School
  • 2009 to 2020
  • English
Harbor Grammar School was my second home. I taught chemistry there from 2009 to 2020, mostly Year 9. I ran the debate team after school and some of my proudest moments happened there. I fix old bicycles.

Subjects taught

ChemistryEnglish literature
What gifts mean to Shawn: Honestly the messages mean more, but a gift would help me buy supplies for my new classroom.

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  • Hye-jin Ji-woo Oh 🇰🇷 · $5

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