Very good!
FWIW, I use Paste in place so much that I have set up a keyboard shortcut for it. I use it more than regular old Paste, in fact.
The reason I did this the way I showed it with the small sphere outside the larger component is so that the small one can be moved around without risking its geometry merging with the geometry of the large sphere. It’s sort of like using a pencil to mark out where you want to cut something before you commit to cutting it.
She might also find it worthwhile to learn about the Dave Method.