Break presentations into episodes

People remember beginnings and endings, so a forty-minute talk allocates much of its time to the least memorable position: the middle. By slide seventeen, somebody is checking email and the argument on slide nine has faded.

The revision divides the middle into three episodes: problem, demonstration, decision. Each has a short opening that says what is happening and an ending that changes the next section. The total duration barely moves.

The boundaries give the audience repeated orientation. A demonstration finishes before the evidence begins. The decision is stated before consequences are explored. Somebody returning after a lapse can work out where they are.

Breaking up a talk merely to add cheerful activity can make it harder to follow. Repeated welcomes, fake cliffhangers and constant format changes create more interruption. An episode needs one job; a different background colour supplies none.

Training might alternate explanation and practice. A proposal might finish the evidence before moving to consequences. A demonstration can answer one question completely, then expose the next.

The structure also exposes expendable material. If a section resists a one-sentence name or removal causes no damage, it may contain several jobs—or none. The presenter deletes four slides that belonged to no episode.

The presenter rehearses again. At minute 23, the audience has just completed the example and knows why the decision follows. Slide seventeen still exists, but it now begins a section.

At minute 41, the audience should be able to name the decision and the few pieces of evidence that made it sensible; everything else was allowed to be the middle.

Behavioural principles

Behavioural ideas at play in this post

Short, plain-English explanations of the principles behind this post, with links to related books and examples in the archive.