[after a science teacher posts about trying to dissuade his students from the notion of UFOs, etc]
If you consider yourself to be a scientist, you should do some research before making judgements.
The evidence for the presence of intelligently controlled, arial vehicles that exceed existing technologies is overwhelming.
Scientists such as Michio Kaku, Astronauts Edgar Mitchell and Gordon Cooper, and countless other scientists with credentials vastly beyond yours are convinced that we are being visited by beings from another civilization, and that some UFOs are craft belonging to these visitors.
Until you research the subject, you are doing your students a tremendous disservice by indoctrinating them with your own ill formed opinions.