Rorita is absolutely correct. For kids education (Primary or Elementary and High school ) you don't need to pay tuition fees but you are still responsible to pay for suppliers list provided by the teachers at the beginning of the year such as pencils, folders, tennis balls lol for tables, erasers etc
Another tuition around $30 to $40( it may varies between schools) agenda for the kids to communicate between teachers and parents and outing for school year end.
However if you decide to put your kids in private school that might cost you a lot and it's not covered.
Regarding Child Tax Benefit. Every child under 18 is entitled to one depending on the total family income. The more the income is high the less child benefit you will receive and it's paid monthly so every year they base it on your income tax submission and it's divided to 12 equal payments (July to July). the following is a link regarding Child Tax Benefit.
http://www.cra-arc.gc.ca/bnfts/cctb/menu-eng.htmlhttp://www.settlement.org/sys/faqs_detail.asp?faq_id=4000396Hope I answered to your satisfaction!!!