I think the first steps in teach people about the rook is:
1. What is called.
2. Where it goes at the beginning of a game.
3. How it moves.
4. How to castle.
I call rooks as elephants & bishops as camels. I learnt it that way.
Towers and pointed head dudes? :-)

Somehow, calling them elephants makes more sense to me. I think a Rook means chariot in Persia. But, its thought of as a seige tower in Europe. So, calling it as Rook while building it to look like a seige tower is interesting.
I think the first steps in teach people about the rook is:
1. What is called.
2. Where it goes at the beginning of a game.
3. How it moves.
4. How to castle.
I call rooks as elephants & bishops as camels. I learnt it that way.