Don't listen others. I have a friend who landed to Toronto three years ago.
Now she is a teacher in an elementary school in Toronto. Toronto school board is very open. At least before 2008, It is easy to find a job as a teacher in Canada, especially in the elementary school. Definitly You can try. If you are a teacher in China, you can try to apply the BED program in Education department of any University. It is a 8 month program and then you can get a teaching license. If you can survive from this program and you can pass the interview of Toronto school board, you can find a job as a teacher in Toronto area.