What type of texts should students primarily work with to improve their informational reading skills?

Focusing primarily on nonfiction articles and reports is crucial for improving students' informational reading skills. Informational texts are designed to convey factual information and promote understanding of the world, which helps students develop critical skills such as analyzing data, summarizing content, and extracting main ideas from texts. These materials often include features like headings, graphs, and charts that help learners navigate and interpret complex information effectively. By regularly engaging with nonfiction texts, students can also become more proficient in recognizing various text structures and understanding the author's purpose, thus enhancing their overall comprehension and analytical abilities.

While fictional novels, poetry collections, and graphic novels each have their own value in developing various literacy skills and engaging students, they do not specifically target the skills needed for informational reading as effectively as nonfiction materials do. Therefore, the emphasis on nonfiction articles and reports is the most appropriate choice for fostering students' abilities in this area.