Choose a TED talk (available at www.ted.com/talks) on a subject that interests you. As you watch, note specific examples of presentation aids used by the speaker. Evaluate the speaker's use of presentation aids and how effectively the aids support the message. Share your findings with the class.

Arrange to rehearse your speech with a group of classmates (either in person or via video-recorded rehearsals). Using the General Speech Critique form in Figure 15.1, give feedback on the group's speeches. Then use the group's feedback to revise your own speech, and discuss your plan with the group.