A lecture video describing the selection and titling of 3 main points. Video explains how main points often start off broad (history/background), narrow (focus on types), and finalize (look at forward thinking themes like the impact or future).
If you require all student speeches (Informative) to be about a human-made structure, you can use this supplemental video to analyze what main points would look like for any given structure topic (architectural style, inside vs outside, rules for entering, observation desks, etc.).
This lecture video discusses how to take the whole body of the speech and logical ways that might be used to break it into 3 main points. Several speech topic are given to provide students with multiple examples.
In this student speech, the introduction and conclusion have been removed to focus just on the development and sequencing of the main points. You will see the point development, and transitions, for 3 main points about Yellowstone National Park.
Visit the Outlining Page for resources that also involve organizing principles.