just want to say it's no failure to be teaching 5 year olds to listen to you play your accoustic guitar.
It must take skill to force them to sit in a circle while you croon "teach" them. Just guessing about the circle because i can only hear you singing while i eat my lunch but i am not guessing about your musical aptitude. You are horrible my friend.
I know musical nursery schools are popular now but that doesn't mean Stairway to heaven is better than Puff the Magic Dragon. Stick to something they might like instead of something you like. I know you can strum the simpler tunes because you stumble your way around all those zep tunes ok.
Kinda cool when you had them singing Stone temple Pilots "Vaseline" the other day. Way to get them a head start on drug savvy fatalism.