You’d need to start by cutting some blocks of ice, and then putting them together to make the walls of the igloo.  I think this might be a good example for our next lesson on language...can you try to help me improve the wording of my sentence?
assitant
To make an igloo you need several materials: a block of ice, some hot sand, some water, and a few small stones. Let me describe the steps for building an igloo. First you’ll need to find a block of ice. An ice block is a block that’s made out of ice. The next step is to pick up the block of ice with your hands.
assistant
how do you make an igloo?
user
An igloo is a building with a dome-shaped roof made of blocks of ice.
assistant
Okay so what do I need?
user