My kids will also appear for test next month..They have not landed yet for settling.
age criteria is little different , how in India we count child cut of date is 1 April (CBSE I know..) same there cut of date is till December..child born from Jan till Dec will go in same class. I am pasting informative post by Qorax here.
Canadian Schooling system
"As an immigrating parent, understanding Canada's school system is of fundamental importance -- especially due to the gradation structure, age considerations & varieties available. If you're coming from the UK, it's very different and can be a confusing and often misunderstood.
OVERVIEW
Sans the Pvt Schools - Education in Canada is publicly funded and overseen by federal, provincial, and local governments. Which means, our children get to be educated for free. [I repeat]Schooling is provided without charge for all residents of Canada - they have a right to education.
Schools in Canada are generally divided into Elementary education, followed by Secondary or "High School". Within the provinces under the ministry of education, there are "District School Boards" administering the educational programs. These school boards would follow a common curriculum set up by the province the board resides in. Only Alberta allows public charter schools, which are independent of any district board. Instead, they each have their own board, which reports directly to the province.
http://www.canadavisa.com/canada-immigration-discussion-board/-t72241.0.html