Insulated Carry Bags Do I Have To Carry Around My Backpack In High School?

Do I have to carry around my backpack in high school? - insulated carry bags

* Please read *
I am in grade 9 clock in the morning, I have a backpack from class to class, Ontario, wearing or I go to my locker each time with the things I need to next course?

and I carry notebooks and folders on the first day?

and also how can lunch at school?
I am a newcomer to Ontario, Canada. School starts tomorrow. I've also been at a private school my whole life, but I am a public high school, so I do not know what the differences are. for lunch, so far, all wearing this bag in my privaet school meals:
http://goshopping.thestar.com/shop/produ ...

Parents packed .. Now I'm going to a public high school so I have no idea how the package of other children.

My question: Pack their lunch, as children in public schools in Canada? as in a plastic bag, a brown paper bag or bags of insulation you have learned? or have the most children only buy, eat lunch at school lunch? How do children eat in tThis first day at school?

I am a child that would be acceptable to bring a packed lunch, and think where people have little or nothing at all?

If you could answer all my questions, it would be greatly appreciated.
THANK YOU!
May the best answer to earn back the 10 points ....