Remember when writing a thesis statement for this class that the primary focus is to provide the listening audience a general overview of what to expect in your presentation. Your job is to share this information so that the audience knows what to listen for in the speech.
Be sure that your language is clear, precise, and direct.
For a preview statement, you want to offer the audience information that will help them know how you will arrive at the main point. In order to do that, you give them a verbal road map, outlining your key points you will cover in the speech.
Make sure it, too, is clear, precise, and direct.