This is what my sister says:
I would probably talk to the teacher first. Is it RE in a public school or 'Christian Studies' in a private school? If it is RE you need to get the teacher on board first. Having said that, I think it is OK to tell the students that you have different expectations than their teacher. I'm sure if they have a different PE teacher etc., they have different expectations. Let the teacher know what you expect and maybe she can reinforce that with the students, even if it is only for your lesson. Check out what the school policy / motto is and try and remind the students of this as well.
Maybe take the rewards with you and show the class, as a bit of motivation.
I think it is important that you keep going the same way you have been, even though it is a struggle, you can't let the students 'win'. If you back down on your rules, any respect that is growing will disappear.
Make sure you really praise any good behaviour, either verbally or with mini rewards.
And don't forget to pray.
I hope this helps.
Peta
