In preschool through second grade, most schools place a lot of emphasis on developing pre-reading and reading skills. By third grade, however, the focus typically shifts from learning to read to reading to learn. By this age, and throughout the rest of their school careers, students are expected to use their reading skills to learn and understand academic content in all areas, from science and social studies, to music, art, and even math. Through fluent reading, students also learn the more complex areas of language and communication skills, including spelling, grammar, and vocabulary. To effectively and efficiently absorb content in all of these areas, children must not only know the mechanics of reading, but be able to read fluently.