In To Sir, With Love, the author allows students to decide the curriculum in return for what?

In chapter 9, Braithwaite tries a different tactic with his students. He decides that he will treat them with respect, as they will be entering the adult world in only a few months. In return for his being more open about the curriculum, he expects the students in the class to act like adults. The girls will be referred to as "Miss," and the boys will be referred to by their surnames. In addition, all the students will address him as "Sir" or "Mr. Braithwaite." He expects them to present themselves more tidily. For example, the boys must brush their hair and polish their shoes. He makes an example of Miss Dare, who enters the room in a rush. He asks her to enter the classroom with greater dignity, and she does so. He wants his students to set an example for the other students in the school.