“…All considered, the implications of these challenges for the literacy and science learning of diverse populations of students are profound. Increasingly, students in U.S. schools come from a variety of economic, linguistic, cultural, and ethnic backgrounds, bringing significantly different experiences and expectations about how to initiate and sustain conversations, how to interact with teachers and peers, how to identify and solve different types of problems, and how to go about particular reading and writing tasks (Greenleaf, Hull, & Reilly, 1994; C. D. Lee, 1995; Moje, Dillon, & O’Brien, 2000).…”