Brainstorm an idea as the video suggests: write down all your ideas and keep a written record of them until you have developed a solid plot, setting, and characters for a ten-minute, one-act play. a good play has a conflict that eventually is resolved (or reaches at least a partial resolution or change of some kind). for example, in a doll’s house we learn in act 1 about some conflicts that are troubling nora and torvald and might become bigger problems in the rest of the play. these problems include a lack of trust between nora and torvald and a profound difference in personality, which are confounded by the restrictions of gender roles. in your play, you'll want to start with a conflict that can arrive at some degree of resolution in just one act.