Some aspects of home schooling style

First and foremost, there is  the mug and jug  method.  Not you.  Not me!

Education  -  its derivation is partly from the Latin educere which means to draw out or develop.

Let's look at this page:

Where does space start? here

As it's you showing the page, you could ensure that your child or children see only the picture.  Find out what they think.  Then show the answer.   Move on.

It's their site.  You have demonstrated what they do.  If there's more than one child, one can be the big fat controller (here) - BFC.  The can take it in turns, of course.

Some more questions here

You may need to brief the BFC about this at the bottom of that page:

"15-year-old schoolboy in UK has possibly become the youngest person to discover an alien planet."  here