Female Teacher Torrent Movie About A Female Teacher And Kids Held Hostage In A Cave?

Movie about a female teacher and kids held hostage in a cave? - female teacher torrent

I can not remember if it was the 80s or early 70s to mid, but I remember I used to watch this movie all the time. This teacher and his disciples were increasing in a way that in nature, I think? As they men who were taken hostage and approached bound in a cave. I do not remember the tile, please help!