You've got your seed. Now it needs a structure that carries an audience from "go on then" to "I'm with you". Almost every strong short piece — a slam poem, a TED opener, a captain's speech — runs the same four moves, in this order.
The Four Moves
Hook — the opening that earns the next ten seconds. Drop the crowd straight into a moment, a sharp question, or a line that makes them lean in. No "Today I'm going to talk about". Start inside the thing.
Build — the middle that stacks it up. Here your evidence, your images and your devices do their work — an appeal here, a device there. Each line should add weight, not just fill time.
Turn — the pivot where it gets bigger or flips. The moment the piece stops being about you and becomes about us — or the small thing reveals the big thing. A good turn makes the audience sit up: "oh, this was never just about the netball court."
Landing — the last line that stays in the room after you stop. Short. Punchy. Often it echoes the hook, so the piece closes a loop. You want the kind of ending people repeat in the car park.
Why the Order Is Locked
The moves only work in sequence. A turn before you've built anything has nothing to pivot off. A landing without a turn just stops. Drag the parts in the toy and you'll feel it — out of order, the piece stumbles; in order, it climbs. That climb is the structure. Get the four moves down and you've got a draft skeleton you can hang any seed on.