I used to write things for friends. There was this girl I had a crush on and she had a teacher she didn't like at school. I had a real crush on her so almost every day I would write her a little short story where she would kill him in a different way.
In other words if a teacher only teaches in one way then they conclude that the kids who can't learn well that way don't have the ability when in fact it may be that the way the teacher's teaching is not a particularly good match to the way those kids learn.
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A friend of mine said no matter what I do I always look like an English teacher. She actually said you still look like a Campbell's Soup kid.