A speech about back-to-school is meant to persuade students, so the ad must be as persuasive as the speech, using key points of the speech to draw students' attention and encourages them to listen to the speech and encourages them to return to classes.
Answer: Her advertisement should be organized. Also, It should have key factors the the President talked about. (If he talked about unity, then have a sketch that depicts unity). It should catch your attention in ways that the speech could.