Sheena presented her informative speech on the life of marie curie. she had decided to cover curies early life and marriage, her scientific achievements despite the prejudice against her as a woman, and finally, the importance of curies discoveries on our lives today. she concluded her introduction by previewing all the main points, then used an internal summary as a transition to each of the main ideas. in her conclusion, she summarized her main ideas, emphasizing the importance of marie curies life. what strategy to enhance audience recall was sheena using?