If students demonstrate poor comprehension despite fluency in reading an informational text, how should the teacher address this?

The correct choice emphasizes the need for explicit vocabulary instruction and a structured approach to closely analyze significant portions of the text. When students display fluency in reading but struggle with comprehension, it often indicates that they may not fully grasp the essential concepts or terminology within the text. By introducing key vocabulary, the teacher helps to build a robust foundational understanding of the content, which is vital for effective comprehension.

Additionally, supporting close reading of key passages allows students to engage with the text at a deeper level. This involves reading carefully to analyze structure, identify main ideas, and understand complex information. Close reading strategies can foster critical thinking skills and encourage students to draw connections within the text, enhancing their overall comprehension.

The other choices, while beneficial in certain contexts, may not effectively target the specific comprehension issues indicated. Summarizing what they read can reinforce understanding, yet it may not directly address gaps in vocabulary knowledge. Assigning more reading could potentially overwhelm students further without addressing their specific comprehension hurdles. Providing silent reading time, while useful for building endurance, does not directly tackle comprehension issues tied to vocabulary and understanding of key concepts from the text.