In 2012 the Canadian Government passed the Copyright Modernization Act. It was significant in that it added Education to one of the allowable uses of copyrighted materials under Fair Dealing. The act was set for review in five years and the government has reviewed it and indications are that Education will remain an allowable use.
The Fair Dealing Decision Tool helps teachers decide whether "fair dealing" permits classroom use of print materials, artistic works, or audiovisual materials without first getting copyright permission. It is very useful.