I’m not a teacher, but the first (and possibly only) lesson for teaching Islam, presumably needs to be “kids, be on the safe side and don’t question anything, don’t say anything or show anything that may ultimately upset someone’s religious beliefs, no matter how ridiculous you may find them, because if you do and upset someone, it’s your fault”.
“Like what sir?”
“I can’t show you, but trust me it will be bad if you do”
“Can you give us a couple of examples”
“No, not worth the risk...right, what do you want to talk about for the next hour”.