Heaven - We were taught evolution in the 60s, as part of the curriculum (Nova Scotia) in junior high school. It's 'general' science. Perhaps that varies from province-to-province.
Hey tal, this is good to read. I was in high school in the '70s in Ontario. If I recall correctly, Evolution was handled in high school Biology class. This course was not mandatory. I know because I did not take it in grade 10 as I didn't like the teacher. So my Science involved a General Science class (which did not include Evolution), a separate Physics course, and a third separate class on Chemistry (we made acid rain and I inhaled a lung full of it... nasty!).
To get your grade 12 graduation diploma, it was mandatory that you had Science credits, but not necessarily Biology/Evolution.