Which activity would best enhance second-grade students' ability to present their research effectively?

Creating visual representations of important information is a highly effective activity to enhance second-grade students' ability to present their research. Visual aids, such as charts, diagrams, or posters, can help students organize their thoughts and communicate their ideas more clearly during a presentation. These representations serve not only to support their spoken words but also to engage their audience, making the information more accessible and memorable.

For second graders, who may still be developing their verbal communication skills, visuals can provide a powerful way to convey key points and maintain the audience's interest. The process of creating these visuals also encourages students to think critically about the main ideas of their research, reinforcing their understanding of the material they are presenting.

In contrast, while other activities may support various aspects of the presentation process, they do not directly enhance the students' ability to present information effectively in the same comprehensive way that creating visuals does. Activities such as drafting comprehension questions or practicing presentations with peers focus on different skills and may not lead to the same direct enhancement in presentation quality.