Adding parent instructions & improving the planet orbit activity

Today I added the parent instruction pages and asked for a few early feedbacks.

One suggestion stood out: the planet orbit exercise might work even better if kids first learned the order of the planets, just to make the activity more intuitive.

So we added a new riddle-matching exercise to introduce the planets in the correct order from the sun. After that, the orbit cut-and-glue activity comes in naturally.

This bumped the activity pages from 28 → 29… and honestly now I want to make it 30 :D

I’ll think about one more small activity while polishing the final details.