Not so much today; as I mentioned, the transition period was from 1970 to 1985. While some textbooks and equipment still comes from the US, a lot is also sourced from other parts of the world, and some textbooks are Canadian versions now (in metric).

In fact, the textbook countries spent a good 20 years from the late 80s to the early 00s churning out new editions on an annual basis where a bit more was converted to metric every time. This often forced students to buy up to three editions of a book new if a department was using the same text for a course series.