If you want like the "proper" or PSIA style of teaching this is what to do:
Get their explain the environment show verbally where everything is.
After that explain all of the equipment, and why it's there, but be engaging with it.
Do some boot work walk around in them, especially in a figure eight to get the edge initiation without skis. Practice a were by sliding their boots in the snow in the shape of a wedge.
Put one ski on and just glide around, and do a figure eight, do a one ski pizza on flat ground.
Put on both skis and glide around do all that is said above, and be fun with it.
The next step is to side step up a very short ways on the bunny hill and do straight runs
Start working in the pizza still side stepping not on the carpet yet.
Do straight run pizza, hybrid bringing their skis together and apart in on run.
Start trying to do turns, you want to have a plan for this, you need to explain pressure. The most important part of the turn is the tipping and flattening of skis, this will help them progress far faster.
Once they link a turn, link two turns, and so on.
If they are ready you can take two paths: You can keep them on the bunny hill and work on wedge to parallel, or you can take them to the chair and continue to get them comfortable with the wedge.
Just remember kids get cold tired hungry and bored really easily so don't use this exact structure, these are more or less guide lines. And attempt to teach to their skill set, because there are three types of learners, visual, auditory and kinesthetic, so just tamper with them all for a more fun easier session.
hope that helps, if you even read it.