I could quite easily see how this teacher thought in a twisted way she was doing her pupil good.
But it’s about as seemly a “redemption” as in the musical “Gypsy Rose Lee” where the emotionally abused girl grows up to be a strip teaser. Any of you folks ever see that one? Believe it or not my high school did that as a musical in the mid seventies... and this was in a rather prudish Southern community. No I didn’t have any input into that decision, but I wasn’t a Christian yet. I blush to say I was the piano player for the strip teaser in the play! (Of course they didn’t really strip in the play. But still.)
The socially redeeming feature of the resulting movie is that it made me fall in love with Natalie Wood.