This man is the textbook definition of teacher. He teaches. That's about all you should expect from him. You don't get the banter that you find in other classes, but that's okay. You'll find that this is the one class where you actually do work because there is absolutely no talking in maths class. And he doesn't even enforce the rule - maths just naturally lapses into silence. Mr Dinon emits a primordial energy which just says "Don't you cross me kid". If you went to school purely to learn, this man would be the perfect teacher. In a subject like Maths he is best.