Final answer:
August's homeroom teacher in the book 'Wonder' is named Mr. Browne.
Step-by-step explanation:
In the book Wonder, the name of August's homeroom teacher is Mr. Browne. He plays an important role in helping August, the main character, adjust to his new school and overcome the challenges he faces due to his facial deformity. Mr. Browne is known for his precepts, which are monthly aphorisms that encourage his students to reflect on their behavior and to foster kindness and understanding towards others.