What type of texts are commonly used in thematic units?

The correct answer indicates that thematic units often incorporate various texts across subjects, which enhances the learning experience by providing multiple perspectives and contexts related to a central theme. This approach allows students to engage with content from different disciplines—such as literature, science, history, and art—creating a more integrated understanding of the theme being studied.

By using various types of texts, educators can cater to diverse learning styles and interests, while also promoting critical thinking and connections between different areas of knowledge. This method not only enriches students' comprehension but also encourages them to see how themes manifest in different contexts, thus fostering a deeper appreciation for interdisciplinary learning.

In contrast, the other options are limited in their scope. Only using fiction texts would restrict the richness of the thematic unit, and relying solely on textbooks does not allow for varied and engaging content. Additionally, not incorporating any texts at all would eliminate the primary resource for imparting knowledge in a thematic unit.