In a speech, main ideas are often outlined

In a speech, main ideas are often outlined As the speech is given both in the introduction and in the conclusion.

It is important to outline the main ideas you are discussin. In order to make it easier for the audience to understand your speech, you should outline the main ideas in the introduction, when you present your speech, so the audience can build expectations about what they are going to hear. You should do it again  in the conclusion when you summarize your speech so the audience can remember what you said and have a global vision of your speech.

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