ROTFLMAO at Six
Flower dear, look at it this way, kids are like sponges. They take this stuff in and absorb it all until the are completly saturated, then their minds wring out and they start afresh.
Your little one will not be damaged by hearing this sort of thing. Use it as an opportunity to explain death and dying and how different religious beliefs are.
In fairness to the teacher, let them teach knowledge and not be bogged down with religious haggering, that is better taught in the home IMO.
If I were a teacher, I wouldn't have touched it with a ten foot pole, it is a no win situation. what would have been tragic is if he or she introvened and took a religious stand one way or the other. All hell would break loose, and the teacher would have lossed her job.
Things like this happen all the time when raising kids. I have found it is best to let them learn and hash things out for themselves. You sound very reasonable in that you have explained to your child that people have different ideas about things that are unknown. My advice is too continue to let him form his own views after all, he is quite young.
Alot of people isolate their kids (homeschooling for instance) because they feel their kids wont be faced with differing religious views. They get what they want, the kids grow up feeling religiously superior to others and confused and naive about how the world works.
If you don't want your child learning such basic knowledge at the age of 30, 40, 50, then allow them to live and choose as they go along in life.
I went through this many moons ago (I have four kids). I used to really get upset if ANYONE mentioned religion to my children. As it turned out, I was undermining their ability to form their own opinion.
They are well balanced and tolerant and the fact that they have been exposed to different views is in hindsite a good thing.