The skills you want to develop in your kids as students are primarily putting the plane where its supposed to be, not just preventing a crash. To do this, you want to make sure they master both left and right turns, and returning the plane to level flight coming out of every turn. This is best taught by just having them fly repeated figure eights, with the cross over right in front of you. Once they can keep the plane where they want it, move on to approaches.

You will find that trying to teach a beginner on the buddy box will improve your skill as well. Don't let them do anything that makes you nervous, and don't be afraid to take control before they get in trouble.

The SPAD Debonair is a WONDERFUL trainer. I still have one, and its going with me on vacation to do some float flying. Its built like a tank, and with a few modifications is a fine air craft. It "aint purdy", but everyone thats ever seen one fly is impressed.

Good luck,
Brad