I remember a 11th grade English class (1975) where writing a paper was explained detail, and how you cited direct quotes. We must have spent two hours over a week...about the correct way of producing legit documents. Doubt if they still do that today.
I too was in 11th grade in 1975 and experienced the exact same thing in my English class. My teacher, Mrs. Anderson, made dang sure her students understood the folly of plagiarism.
I got 4.0 in all my accounting classes.
Pretty hard to copy that from elsewhere