Assess students' ability to analyze symbolism, imagery, and unreliable narration in Edgar Allan Poe's "The Tell-Tale Heart." Tasks: identify and interpret key symbols (the old man's eye, the beating heart), analyze sensory imagery (sound, light/dark, motion) and its effect on mood and tone, and evaluate how the narrator's instability, rhetorical choices, and pacing affect credibility and theme; support answers with short textual evidence and explanation.