Mary,
Like the US, a Canadian Instructor's Rating from TC doesn't require any cross-country experience. Almost all of my instructing was done before I had ANY cross-country experience, but then most of the flights were above the airfield or in the circuit.
However, that doesn't mean there is a lack of cross-country flying. See this year's Online Contest for Canada:
Statistic: Club OLC 2014 - Canada
I totted up by eye about 400,000 km in <2500 flights. Not bad for a country that has probably less than 1500 glider pilots who can fly for only six months of the year.
Also, many of the serious cross-country pilots are very dedicated. Next year's Nationals will be in Olds, Alberta. For Southern Ontario pilots, that's a 3600 km drive and for Quebec pilots, 4200 km. Ironically, the quickest route is through the US.