I am shutting off the nursery AND the rest of the house!
I don't think you should say that, father.
See, father? It's not Africa.
OPEN THIS DOOR YOU TWO!!
lol they look tasty
The lions are headed towards us!!
At this point in the story, the children's father threatens them with shutting down the nursery.
When the children call for their parents to come look at the nursery to see that it is not Africa (because they changed it).
Want some tea Mr. Mcclean?
The climax of the story is when the children lock their parents in the nursery with real lions.
Literary Term (Irony)
I'm such a good dad.
I really need to buy a therapist.
The falling action is when the antagonists (the children) beat the protagonists (parents). In other words, by killing the parents, the antagonists won.
There is not much of a resolution in this short story. In the end, the children kill their parents (aka, they choose technology over their own parents). Other than this, there is not really a win for the Protagonists, because they're dead.
One good example of irony in this short story is that the family buys the automated house so that they can have less chores (and therefore spend more time together as a family), but, in reality, they become more and more estranged from each other.