The play by Bernard Shaw “Heartbreak House” gives me the opportunity to make a point that separates scientific presentations from others. In the play, a man comes inside the home of the owner and introduces himself so: “Excuse my intruding in this fashion, but there’s no knocker on the door and the bell does not seem to ring.” To which the owner replies: “Why should there be a knocker, why should the bell ring: the door is open!”
By Jean-luc lebrun
You are certainly familiar with scientific presentation slides that have all the structural signs of the scientific paper they were extracted from (same headings, same figures, etc). After the title slide, you will often found a slide with the title “introduction”, “outline”, “motivation” or “aims”. Anything wrong?
What is the function of that slide?
Yes, its function is to introduce… but not only that. Its function is make sure that the people sitting at the back of the room listen to your whole presentation. The back-sitters are migratory scientists eager to take flight when the temperature you maintain around your topic drops below hibernation temperatures. And they start packing as soon as they see the frigid outline/motivation/aim/introduction slide. After all, it is faster to read your paper than to listen to it (twice as fast, in fact). So the role of this introduction slide is to intrigue, to hook, to captivate the audience by asking a question that becomes the question of everyone in the audience, a question that will keep everyone awake and attentive for the next twenty minutes while you unravel and answer it. Put your question to your audience in a visual form. Make your motivation their motivation, your problem, their problem. Then, when you reveal your solution, it will be theirs also; what satisfied you will satisfy them.
Background knowledge is rarely captivating. You need better than that to hook your audience. Tell a story, give a compelling example, make whatever you are doing essential to THEIR lives. Do not state commonplace facts already known by all in attendance. State the surprise, the novelty, the anguish, the reward… Forget about the conventional wisdom which is foolishness: it is not necessary to give an outline for any talk that is less than half an hour. Would you greet the friend that comes to your home by keeping him one minute at the doorstep explaining the various rooms he is about to go through before sitting down? Or will you just open the door and let the perfume of that scrumptious cake you baked for her capture her pheromone receptors?
The introductory slide is a teaser tightly connected to your title and your purpose. It entices the audience, and keeps the people in the audience in their seat by riveting their attention on you, and your mouth watering topic. And, oh-by-the-way, The hook slide has no title. Save the electronic ink it would require for your visual.
Image Flickr; author: LunnaDRimmel
Saved by the bell? Not the presenter. You may be cut off mid-sentence by the chairperson if you exceed the given presentation time . Your punch line may never be heard. Where in your presentation are you most likely to drift? And how do you prevent drifting? Find out from our podcast experts, Dr Sinclair and Dr Curry.