Define hamartia (tragic flaw) and analyze impulsiveness as Romeo's, and the play's, defining flaw, tracing it into Friar Laurence's rushed plan.
Hamartia, often translated "tragic flaw," is the characteristic or error in a tragic hero that leads, in part, to their downfall. For Romeo, that flaw is impulsiveness: he falls in love at first sight, marries within a day of meeting Juliet, kills Tybalt in a single furious moment, and will soon decide to end his own life within minutes of receiving bad news, without pausing to verify it. The play compresses its entire tragedy into roughly four or five days, and that speed is not an accident of plotting; it is the flaw dramatized structurally, not only shown through individual choices.
Friar Laurence's plan to help the lovers is itself infected by the same impulsiveness the play critiques. Rather than finding a slower, safer way to reunite Romeo and Juliet after the banishment, he devises a rushed scheme: Juliet will drink a sleeping drug, prepared from his own knowledge of herbs, that will make her appear dead for exactly enough hours to be laid in the family tomb, after which a letter will reach Romeo explaining the trick so he can retrieve her when she wakes. It is a plan with exactly one point of failure -- the letter must arrive -- and the play is about to show what happens when it does not.
Mastery looks like: They can define hamartia, identify impulsiveness as Romeo's tragic flaw with specific evidence, and explain how Friar Laurence's plan extends rather than corrects that flaw.
Common stumbles: Treating the tragic flaw as a moral failing that makes the hero unsympathetic, rather than a human characteristic the audience is meant to recognize and feel for; missing the single point of failure built into the Friar's plan.