Sheena presented her informative speech on the life of Marie Curie. She covered Curie’s early life and marriage, her scientific achievements despite the prejudice against her, and finally, the lasting importance of Curie’s discoveries. Sheena 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 Curie’s life. What strategy to enhance audience recall was Sheena using?

Sheena used the "signposting" technique to enhance audience recall. Signposting refers to the inclusion of verbal cues that help the audience follow the structure of the speech and reinforce the information presented. By concluding her introduction with a preview of the main points, Sheena was providing her audience with a roadmap to follow throughout her speech, indicating what to expect next.

During the speech, she used internal summaries as transitions between the main ideas. An internal summary is a brief restatement of the points previously discussed before moving on to the next topic. This helps the audience to recall what has been covered and understand how the new information fits into the overall structure of the speech.

Finally, in her conclusion, she summarized the main ideas, serving to reinforce what she had discussed throughout her speech. This helps to strengthen the audience's retention of the information by repeating the key points at the end.

Extra: Remembering information from a presentation can be challenging for an audience. Presenters like Sheena use several strategies built on educational and psychological principles to help their audience retain information. Some common strategies include:

1. **Repetition**: Repeating key information several times throughout the presentation to reinforce memory. 2. **Signposting**: Clearly indicating where the audience is in the structure of the talk, what they have heard, and what they are about to hear. 3. **Chunking**: Organizing information into manageable sections or "chunks" so that it is easier to process and remember. 4. **Thematic Structure**: Building the speech around clear themes to make information more coherent. 5. **Use of Analogies**: Making use of analogies and metaphors to relate new concepts to familiar ideas, improving understanding and recall. 6. **Visual Aids**: Using slides, charts, or other visual aids to create a visual memory of the information which can help reinforce spoken words. 7. **Interactive Elements**: Using questions or activities during the presentation to make the audience actively participate and engage with the content.

Such strategies are especially important when conveying complex information, like scientific achievements, because they help communicate the material in a way that the audience can more easily digest and remember.