Define "strange." Are we talking the sixties hippie look with beads, tangled and braided hair with multi-color clothing plus some kind of weird symbol dangling from her neck?
I had a psychology teacher who had us draw up our own astrology charts. She was into wicca. We did all sorts of weird things in that class. None of this was approved educational material, but high schoolers rarely tell their parents what's going on. I didn't. But I grew up, had a son, and chose to home school for just these sorts of reasons.