If you judge A Teacher simply on the merits of story telling, it would be a competent piece of telling a story. The story puts a teacher and a student into a romantic relationship. Then continues to explore the results of what happens when the two gets exposed. My only problem is that the story is attempting to implant a female emotional state into a male. A male high senior dreams of having the opportunity to have sex with an older woman. You can't groom a male into having sex. He would see it coming miles away and would be waiting for it to happen. This is one of the few times where the double standard exists. This would be an excellent story if the roles were reversed. Then the story could expose its audience to the methods of an actual sexual predator. The only way the ending was the way it was is because it was written that way.