Imagery and Symbolism; Pictorial Associational (2) Auditory

The teachers "swish down the corridor in long, brown skirts" highlights the self-importance they feel "dumb insolence" "smoke-rings"; the persona is trying to break free from the rules that the school demands - rebellion is part and parcel of teenagehood "You won't pass. You could do better" (association); tantalising and clear example of unsatisfactory teaching methods