I don't know what this preson mean by "justifying" but just in case...
Education is free from Kinder to grade 12. Unless you choose a Private School, of course.
When you start college or university, you must pay. Or get a loan. Or a scholarship. But it's not free.
You can have a good idea of the system in general in this Wiki article: http://en.wikipedia.org/wiki/Education_in_Canada
Does this help? I hope so!