Have you seen his website? There’s blatant, and I mean really disgusting, pornography posted there. The pictures are posted over and over again so it goes on over and over and over down the page, little movies, and this guy is teaching children?
If you gotta look at naked women, ok, but do it on your own pc and with discretion. At least demonstrate you know you are doing something that is out of society's norms. The fact that this guy is putting this stuff out in the public domain (assuming what you said is true), demonstrates he does not have a moral compass. Without a moral compass, you are unfit to teach kids.