We could say that "Matilda" is a story about how not to teach your students. Maybe in the past harsh words, loud voice and phisical correction worked in the educational system. Today this approach isn't admissible anymore. You don't educate a child/student by beating him/her or by repeating again and again how stupid and good for nothing he/she is. That would ruin the child's chances of ever being good at something.
"The Trnchbull" is the kind of teacher that uses brutality and phisical punishments in order to make students learn or remember what she taught them. She keeps telling them that they are a bunch of fools that do everything wrong: "You were wrong! The Trunchbull barked! In fact you strike me as the sort of poisonous little pockmark that will always be wrong! You sit wrong! You look wrong! You speak wrong! You are wrong all round!" As we could see the only thing she achieves is to make students abhor and reject her.
At the opposite pole we have Miss Honey. She praises children who are right and encourages those who are too shy or give wrong answers. She creates the perfect atmosphere for children to pay attention and learn.
