We were being taught metric and imperial side-by-side in the mid to late 70s when I was in school… because all of our textbooks where in imperial, but metric had already been brought in.
Canada made its first formal switch from imperial to metric units on April 1, 1975. That was the first day weather reports gave temperatures in degrees Celsius, rather than Fahrenheit. Many
did not take kindly to the change.
April 1st, 1975, was unseasonably cool, with 100 per cent chance of complaints owing to the rare gust of bureaucratic change.
On his 6 p.m. broadcast the day Fahrenheit died, CBC weatherman Bill Lawrence informed a somewhat confused and cantankerous public that it was 1 degree Celsius. Then someone threw a pie in his face.
https://www.thestar.com/news/insight/2015/03/29/forty-years-ago-celsius-came-to-canada-its-reception-brrrrrrrrr.html
Young people use metric the most, but nearly everyone thinks of their height and weight in imperial March 1, 2017 – How tall is Sidney Crosby? And how far is it from Vancouver to Halifax? For most Canadians, the answers to these questions are “5 feet, 11 inches,” and “6,160 km,” respectively...
angusreid.org
Now on April 1st each year we just get this:
View attachment 17275