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Terri DeMos


Ms. DeMos earned an Honours English degree from the University of Alberta, and soon after graduated with distinction from the Secondary Education Program.


Sandra Arevalo

Languages Teacher

Born and raised in Colombia, Ms. Arevalo earned a Bachelor’s of Education degree with a focus in Spanish Language, English and French at La Salle University, as well as a post-graduate Title of Specialist in Higher Education Teaching at Nueva Granada Military School in Bogota, Colombia.


Ashley Armstrong

Lower School Teacher

Ms. Armstrong was born in Killarney, Manitoba.


Susan Armstrong

Middle School Teacher

Mrs. Armstrong obtained her Bachelor of Fashion Design degree while in Toronto and was awarded the Governor General Silver Medal for excellence.


Christopher Cartwright

Upper School Teacher

Mr. Cartwright was born and raised in Edmonton, where he attended the University of Alberta and achieved a bachelor’s degree in physics with specialization in astrophysics.


Sherley Chau

Middle School Teacher

Born and raised in Calgary, Ms. Chau has lived in the city for the majority of her life (with a brief stint in the UK).

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Natasha Cox

Lower School Teacher

Mrs. Cox was born and raised in Cranbrook, BC.


Ruth Daly

Lower School Teacher

Ms. Daly teaches Grade 4 at Edison.


Michael Finnerty

Middle School Teacher

Mr. Finnerty hails from the hot desert climate of Phoenix, Arizona.


Jeff Friesen

Middle School Teacher

Mr. Friesen has been teaching at Edison since 2005.


Jike Gu

Middle School Teacher

Mr. Gu was born and raised in China.

Brett Haasdyk

Brett Haasdyk

Physical Education Teacher

Brett is a passionate advocate for health and wellness in physical education.

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Blair Harker

Lower School Teacher

Mrs. Harker was born in Red Deer, Alberta, but moved to Dubai, United Arab Emirates, when she was seven years old.


Tracy Khuu

Lower School Teacher

Ms. Khuu was born and raised in Calgary.

Kayla King

Kayla King

Middle School Teacher

Mrs. King was born and raised overseas.


Jessica McElroy

Lower School Teacher

Edison School is excited to announce our first Edison graduate to join our faculty. Welcome back, Mrs. McElroy!


Heidi Oborne

Lower School Teacher

Mrs. Oborne knew that she wanted to be a teacher from the time she was five years old.


Shauna Palmer

Lower School Teacher

Mrs. Palmer obtained her Bachelor of Education degree from the University of Alberta with a minor in community education.


Julia Power

Lower School Teacher

Mrs. Power received her Bachelor of Education with a minor in Educational Psychology from the University of Alberta.


Amber Robinson

Lower School Teacher

Mrs. Robinson has been teaching at Edison for over a decade.


Cheryl Ryan

Middle School Teacher

Mrs. Ryan is a Scottish native who obtained her Bachelor of Arts degree with Honours in French, Spanish and German from the University of the West of Scotland.


Jason Salter

Upper School Teacher

Mr. Salter


Carlos Schroeder

Upper School Teacher

Mr. Schroeder was born and grew up in Brazil, where he obtained his bachelor degree in Physics and MSc in education.


Tamara Smith

Middle School Teacher

Mrs. Smith began her path to teaching while building a career in human resources.


Hayley Twist

Upper School Teacher

Dr. Twist is currently teaching sciences at the grade 7 - 12 levels.


Sheila Vogelaar

Lower School Teacher

Mrs. Vogelaar grew up on a farm in southern Alberta and obtained her Bachelor of Education degree from the University of Calgary.


Adrianne Yip

Upper School Teacher

Ms. Yip was born in Calgary, Alberta, to immigrant parents from the Czech Republic. She is fluent in the Czech language.


Gale Zhang

Middle School Teacher

Mr. Zhang was born and raised in Beijing, China.