Final answer:
The preview of a presentation should include an attention-getter to engage the audience and establish the presentation's tone. It sets the stage for the main theme and helps to clarify the aim of the presentation.
Step-by-step explanation:
The preview of a presentation should generally include an attention-getter. This is an essential element that serves to engage the audience at the very beginning and establish the tone of the presentation. A compelling attention-getter can be an anecdote, a striking statistic, a question, or even a powerful quotation. Its purpose is to capture the audience's interest and to set the stage for the forthcoming content. An effective introduction also outlines the main theme or central idea of the presentation. This should segue into a definitive statement or thesis that previews the main points and provides a guidepost for the audience to follow. This thesis statement is a critical part of the introduction, as it helps clarify the aim of the presentation to the audience.
The introduction should ultimately lead to a structured overview of the presentation's path. It establishes credibility, briefly touches upon key points, and is your opportunity to tell the audience why they should care about the content. Setting the right tone with a solid attention-getter and a clear thesis prepares the audience for the content that follows.