Paul is a great guy. he does workshops for PG kids at various conferences. He's taught me his workshop methods, and I have used them to present to kids aged 6-10. He has these little Zome challenge cards that are helpful in asking the kids to design things and figure things out, such as the shape of the different rod ends and sphere openings. His focus is on letting the kids make discoveries for themselves, and to gently guide them as they go along.

I find that kids younger than six may have trouble connecting the pieces, and they tend to damage them by breaking the ends.