A performer, I am not...

I thought I was incorporating values by trying to set a good example to them.
It seems I'm just being nice and a friend to them who seems to be a push-over.
Values did not seem to burn into their brains yet... Knowledge-wise... Also unsure...
They need an authoritative figure which I cannot seem to be, not all the time.
A teacher should be the world greatest performer, able to be versatile and act as various kind of characters.
No one actually gave me a proper script.. So what character should I be? And when?