During reading, the students actively monitor their thinking processes to clarify, deepen, and expand their understanding of the text. They construct meaning by focusing their attention and engagement on the text, remembering key concepts, and making inferences. We want students to automatically shift and coordinate among these processes as needed while reading to verify that the text is making sense. Teachers are frequently advised to limit interruptions when reading aloud to students or when students read independently, as not to disrupt understanding. However, with difficult text, research has shown that guided discussion of important concepts or key ideas while the students are reading together can be a very effective way to help students improve their understanding of the text being read and also to acquire understanding of the thinking processes that are often required to comprehend complex text.