Make a children’s book about practicing skills and getting better at them.
I helped a friend’s six year old daughter learn that by having her make the same paper airplane repeatedly until she mastered it.
Apparently nobody in school had yet taught her that one’s level of skill is not a fixed thing. Before that thing with the paper airplanes whenever she’d try something new she’d see her first failure and then exclaim “oh, I can’t do this!” and then give up.
Honestly nobody taught me about practice making skills better in school either. Not sure why such a fundamental part of using one’s brain is neglected in our schools but it is.