Informative speeches about processes are usually arranged in chronological order. Clear organization is less important in speeches about processes than in other kinds of informative speeches.
Speakers usually tend to make their charts and drawings larger than is really necessary.
Because of their greater realism, photographs usually make better visual aids than do simple line drawings. In most circumstances, a speaker should avoid passing visual aids among the audience. A visual aid is only as useful as the explanation that goes with it. It is overly repetitious for you the speaker to restate your topic's theme in the conclusion. A good persuasive speech must contain a question of fact, a question of value, and a question of policy.