First you go to a place where there are a lot of trees and a snowdrift.
Then you dig in the snowdrift and make a igloo that doesn’t have a top or one side.
Next you go get some branches from a cedar tree because they are good insulation or it helps keep the heat and warm air inside your little shelter for your family.
You put the cedar branches on top and all the sided of your igloo.
Make sure you dig all of the snow off of the ground in your igloo so you’re not sitting or lying on the wet snow. (You can build a fire inside to warm it up and dry the ground)
You can make a door out of cedar trees to, to keep your heat in.