assertion

How should you support your ideas?

supporting materials---function: make the audience convinced

1. major kinds of supporting materials

a. examples: can be used to 

help define or clarify concepts

enhance credibility

draw attention to a particular feature (attention getter)

help connect your audience with the topic of your speech

three types of examples

brief examples (less detailed)

mentions a specific instance to illustrate a general statement 概括说明

statistics/

statistics seemingly represent hard facts

statistics can be overwhelming when presented orally

statistics provided an air of objectivity and certanty

people generally believe numeric data are incontrovertible truths

testimony

provides a perspective other than your own

helps humanize your speech

can be presented by quoting or paraphrasing words from others

2. how to choose supporting materials

3. search for supporting materials